{"id":32031,"date":"2025-09-13T19:44:38","date_gmt":"2025-09-13T19:44:38","guid":{"rendered":"https:\/\/www.techstack.in\/blog\/?page_id=32031"},"modified":"2025-09-13T19:45:33","modified_gmt":"2025-09-13T19:45:33","slug":"sql-interview-questions-exam","status":"publish","type":"page","link":"https:\/\/www.techstack.in\/blog\/sql-interview-questions-exam\/","title":{"rendered":"SQL ( Interview Questions ) Exam"},"content":{"rendered":"<section class=\"wpb-content-wrapper\"><p>[vc_row content_style=&#8221;content_dark&#8221;][vc_column content_style=&#8221;content_dark&#8221;][vc_column_text]<script>\n                            if (window.qmn_quiz_data === undefined) {\n                                    window.qmn_quiz_data = new Object();\n                            }\n                    <\/script><script>window.qmn_quiz_data[\"3\"] = {\"quiz_id\":\"3\",\"quiz_name\":\"SQL Exam\",\"disable_answer\":0,\"ajax_show_correct\":0,\"progress_bar\":\"1\",\"contact_info_location\":\"0\",\"qpages\":{\"1\":{\"id\":\"1\",\"quizID\":\"3\",\"pagekey\":\"o1kg7KVL\",\"hide_prevbtn\":\"0\"}},\"skip_validation_time_expire\":0,\"timer_limit_val\":0,\"disable_scroll_next_previous_click\":0,\"disable_scroll_on_result\":0,\"disable_first_page\":\"0\",\"enable_result_after_timer_end\":0,\"enable_quick_result_mc\":0,\"end_quiz_if_wrong\":0,\"form_disable_autofill\":0,\"disable_mathjax\":0,\"enable_quick_correct_answer_info\":\"0\",\"quick_result_correct_answer_text\":\"Correct! You have selected correct answer.\",\"quick_result_wrong_answer_text\":\"Wrong! You have selected wrong answer.\",\"quiz_processing_message\":\"\",\"quiz_limit_choice\":\"Limit of choice is reached.\",\"not_allow_after_expired_time\":0,\"scheduled_time_end\":false,\"prevent_reload\":\"\",\"limit_email_based_submission\":0,\"total_user_tries\":0,\"is_logged_in\":false,\"error_messages\":{\"email_error_text\":\"Not a valid e-mail address!\",\"number_error_text\":\"This field must be a number!\",\"incorrect_error_text\":\"The entered text is not correct!\",\"empty_error_text\":\"Please complete all required fields!\",\"url_error_text\":\"The entered URL is not valid!\",\"minlength_error_text\":\"Required atleast %minlength% characters.\",\"maxlength_error_text\":\"Maximum %maxlength% characters allowed.\",\"recaptcha_error_text\":\"ReCaptcha is missing\"},\"first_page\":false}\n                    <\/script><div class='qsm-quiz-container qsm-quiz-container-3 qmn_quiz_container mlw_qmn_quiz  quiz_theme_default random '>\n\t\t\t\t\t\t\t\t<form name=\"quizForm3\" id=\"quizForm3\" action=\"\/blog\/wp-json\/wp\/v2\/pages\/32031\" method=\"POST\" class=\"qsm-quiz-form qmn_quiz_form mlw_quiz_form\" novalidate enctype=\"multipart\/form-data\">\n\t\t\t\t<input type=\"hidden\" name=\"qsm_hidden_questions\" id=\"qsm_hidden_questions\" value=\"\">\n\t\t\t\t<input type=\"hidden\" name=\"qsm_nonce\" id=\"qsm_nonce_3\" value=\"d48eab4a03\">\n\t\t\t\t<input type=\"hidden\" name=\"qsm_unique_key\" id=\"qsm_unique_key_3\" value=\"6a311a5890b42\">\n\t\t\t\t<div id=\"mlw_error_message\" class=\"qsm-error-message qmn_error_message_section\"><\/div>\n\t\t\t\t<span id=\"mlw_top_of_quiz\"><\/span>\n\t\t\t\t\t\t\t<script>\n\t\t\t\tconst d = new Date();\n\t\t\t\td.setTime(d.getTime() + (365*24*60*60*1000));\n\t\t\t\tlet expires = \"expires=\"+ d.toUTCString();\n\t\t\t\tdocument.cookie = \"question_ids_3 = 113,105,104,108,96,87,97,106,93,107,111,98,86,88,110,102,112,85,100,91,99,95,103,101,90,94,89,92,109; \"+expires+\"; path=\/\";\n\t\t\t<\/script>\n\t\t\t\t\t\t<section class=\"qsm-page \">\n\t\t\t\t\t\t\t\t<div class=\"quiz_section quiz_begin\">\n\t\t\t\t\t\t<div class='qsm-before-message mlw_qmn_message_before'>\n\t\t\t\t<p>Welcome to your SQL Exam<\/p>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"qsm_contact_div qsm-contact-type-text\">\n\t\t\t\t\t\t\t\t\t\t\t<span class='mlw_qmn_question qsm_question'><label for=\"contact_field_0\">Name<\/label><\/span>\n\t\t\t\t\t\t\t\t<input type='text' class=''  name='contact_field_0' id='contact_field_0'  value=''  placeholder='Name'  \/>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"qsm_contact_div qsm-contact-type-email\">\n\t\t\t\t\t\t\t\t\t\t\t<span class='mlw_qmn_question qsm_question'><label for=\"contact_field_1\">Email<\/label><\/span>\n\t\t\t\t\t\t\t\t<input type='email' class='mlwEmail '  name='contact_field_1' id='contact_field_1'  value=''  placeholder='Email'  \/>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"qsm_contact_div qsm-contact-type-text\">\n\t\t\t\t\t\t\t\t\t\t\t<span class='mlw_qmn_question qsm_question'><label for=\"contact_field_2\">Course<\/label><\/span>\n\t\t\t\t\t\t\t\t<input type='text' class=''  name='contact_field_2' id='contact_field_2'  value=''  placeholder='Course'  \/>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<div class=\"qsm_contact_div qsm-contact-type-text\">\n\t\t\t\t\t\t\t\t\t\t\t<span class='mlw_qmn_question qsm_question'><label for=\"contact_field_3\">Phone<\/label><\/span>\n\t\t\t\t\t\t\t\t<input type='text' class='mlwPhoneNumber'  name='contact_field_3' id='contact_field_3'  value=''  onkeydown='return event.keyCode !== 69'  placeholder='Phone'  \/>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-113 \" data-qid=\"113\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What will this query return? 3 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32029 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.58.33-AM.png\" alt=\"\" width=\"738\" height=\"185\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.58.33-AM.png 1228w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.58.33-AM-300x75.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.58.33-AM-1024x257.png 1024w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.58.33-AM-768x193.png 768w\" sizes=\"auto, (max-width: 738px) 100vw, 738px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question113-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question113\" id=\"question113_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question113_1\">\n\t\t\t\t\tAll customers with any payment amount\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question113-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question113\" id=\"question113_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question113_2\">\n\t\t\t\t\tCustomers with no payments\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question113-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question113\" id=\"question113_3\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question113_3\">\n\t\t\t\t\tAll payments sorted by amount\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question113-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question113\" id=\"question113_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question113_4\">\n\t\t\t\t\tCustomer(s) with the highest total payment amount\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question113_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question113\" id=\"question113_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_113\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-105 \" data-qid=\"105\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What will be the final result? 3 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32021 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.43.20-AM.png\" alt=\"\" width=\"679\" height=\"165\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.43.20-AM.png 1136w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.43.20-AM-300x73.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.43.20-AM-1024x249.png 1024w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.43.20-AM-768x187.png 768w\" sizes=\"auto, (max-width: 679px) 100vw, 679px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question105-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question105\" id=\"question105_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question105_1\">\n\t\t\t\t\tBalance transferred successfully\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question105-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question105\" id=\"question105_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question105_2\">\n\t\t\t\t\tChanges saved only for the second update\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question105-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question105\" id=\"question105_3\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question105_3\">\n\t\t\t\t\tPartial transfer completed\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question105-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question105\" id=\"question105_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question105_4\">\n\t\t\t\t\tNo changes will be saved\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question105_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question105\" id=\"question105_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_105\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-104 \" data-qid=\"104\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does this query produce? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32020 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.42.00-AM.png\" alt=\"\" width=\"661\" height=\"144\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.42.00-AM.png 1028w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.42.00-AM-300x65.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.42.00-AM-1024x223.png 1024w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.42.00-AM-768x167.png 768w\" sizes=\"auto, (max-width: 661px) 100vw, 661px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question104-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question104\" id=\"question104_1\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question104_1\">\n\t\t\t\t\tAverage salary per department\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question104-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question104\" id=\"question104_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question104_2\">\n\t\t\t\t\tEmployees grouped by salary\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question104-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question104\" id=\"question104_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question104_3\">\n\t\t\t\t\tEmployees ranked by salary, highest first\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question104-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question104\" id=\"question104_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question104_4\">\n\t\t\t\t\tEmployees sorted alphabetically\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question104_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question104\" id=\"question104_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_104\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-108 \" data-qid=\"108\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What extra information does WITH ROLLUP provide? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32024 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.47.57-AM.png\" alt=\"\" width=\"598\" height=\"153\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.47.57-AM.png 876w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.47.57-AM-300x77.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.47.57-AM-768x196.png 768w\" sizes=\"auto, (max-width: 598px) 100vw, 598px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question108-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question108\" id=\"question108_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question108_1\">\n\t\t\t\t\tAdds a subtotal for each employee\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question108-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question108\" id=\"question108_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question108_2\">\n\t\t\t\t\tSorts results by salary\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question108-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question108\" id=\"question108_3\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question108_3\">\n\t\t\t\t\tRemoves duplicates from the sum\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question108-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question108\" id=\"question108_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question108_4\">\n\t\t\t\t\tAdds a total sum across all departments\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question108_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question108\" id=\"question108_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_108\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-96 \" data-qid=\"96\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What is the purpose of COMMIT in SQL? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question96-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question96\" id=\"question96_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question96_1\">\n\t\t\t\t\tUndo changes\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question96-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question96\" id=\"question96_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question96_2\">\n\t\t\t\t\tClose a transaction\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question96-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question96\" id=\"question96_3\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question96_3\">\n\t\t\t\t\tSave changes permanently\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question96-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question96\" id=\"question96_4\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question96_4\">\n\t\t\t\t\tLock a table\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question96_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question96\" id=\"question96_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_96\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-87 \" data-qid=\"87\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does the DISTINCT keyword do? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question87-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question87\" id=\"question87_1\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question87_1\">\n\t\t\t\t\tEnsures only unique values are returned\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question87-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question87\" id=\"question87_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question87_2\">\n\t\t\t\t\tSorts the result\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question87-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question87\" id=\"question87_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question87_3\">\n\t\t\t\t\tFilters NULL values\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question87-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question87\" id=\"question87_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question87_4\">\n\t\t\t\t\tDeletes duplicate rows\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question87_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question87\" id=\"question87_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_87\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-97 \" data-qid=\"97\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does the EXPLAIN command do in SQL? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question97-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question97\" id=\"question97_1\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question97_1\">\n\t\t\t\t\tChecks syntax errors\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question97-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question97\" id=\"question97_2\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question97_2\">\n\t\t\t\t\tShows table schema\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question97-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question97\" id=\"question97_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question97_3\">\n\t\t\t\t\tAnalyzes query execution plan\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question97-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question97\" id=\"question97_4\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question97_4\">\n\t\t\t\t\tOptimizes queries automatically\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question97_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question97\" id=\"question97_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_97\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-106 \" data-qid=\"106\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does this query fetch? 3 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32022 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.44.38-AM.png\" alt=\"\" width=\"749\" height=\"109\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.44.38-AM.png 1482w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.44.38-AM-300x44.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.44.38-AM-1024x149.png 1024w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.44.38-AM-768x112.png 768w\" sizes=\"auto, (max-width: 749px) 100vw, 749px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question106-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question106\" id=\"question106_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question106_1\">\n\t\t\t\t\tDepartments in New York\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question106-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question106\" id=\"question106_2\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question106_2\">\n\t\t\t\t\tNames of employees working in New York departments\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question106-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question106\" id=\"question106_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question106_3\">\n\t\t\t\t\tEmployees from all locations except New York\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question106-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question106\" id=\"question106_4\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question106_4\">\n\t\t\t\t\tNames of all departments\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question106_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question106\" id=\"question106_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_106\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-93 \" data-qid=\"93\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does HAVING do in SQL? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question93-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question93\" id=\"question93_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question93_1\">\n\t\t\t\t\tFilters groups after aggregation\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question93-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question93\" id=\"question93_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question93_2\">\n\t\t\t\t\tLimits result set\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question93-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question93\" id=\"question93_3\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question93_3\">\n\t\t\t\t\tFilters rows before grouping\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question93-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question93\" id=\"question93_4\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question93_4\">\n\t\t\t\t\tJoins two tables\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question93_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question93\" id=\"question93_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_93\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-107 \" data-qid=\"107\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Why is EXPLAIN used here? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32023 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.46.28-AM.png\" alt=\"\" width=\"501\" height=\"118\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.46.28-AM.png 900w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.46.28-AM-300x71.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.46.28-AM-768x181.png 768w\" sizes=\"auto, (max-width: 501px) 100vw, 501px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question107-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question107\" id=\"question107_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question107_1\">\n\t\t\t\t\tTo preview rows before selection\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question107-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question107\" id=\"question107_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question107_2\">\n\t\t\t\t\tTo execute the query faster\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question107-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question107\" id=\"question107_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question107_3\">\n\t\t\t\t\tTo count the matching rows only\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question107-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question107\" id=\"question107_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question107_4\">\n\t\t\t\t\tTo analyze how the database will execute the query\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question107_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question107\" id=\"question107_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_107\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-111 \" data-qid=\"111\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What is the output of this query? 3 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32027 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.56.25-AM.png\" alt=\"\" width=\"667\" height=\"99\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.56.25-AM.png 1440w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.56.25-AM-300x45.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.56.25-AM-1024x152.png 1024w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.56.25-AM-768x114.png 768w\" sizes=\"auto, (max-width: 667px) 100vw, 667px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question111-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question111\" id=\"question111_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question111_1\">\n\t\t\t\t\tNames of employees not managing any project\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question111-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question111\" id=\"question111_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question111_2\">\n\t\t\t\t\tNames of all employees regardless of project status\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question111-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question111\" id=\"question111_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question111_3\">\n\t\t\t\t\tNames of all project managers only\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question111-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question111\" id=\"question111_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question111_4\">\n\t\t\t\t\tNames of employees managing projects\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question111_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question111\" id=\"question111_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_111\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-98 \" data-qid=\"98\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Which statement about window functions is incorrect? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question98-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question98\" id=\"question98_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question98_1\">\n\t\t\t\t\tThey operate on a set of rows related to the current row\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question98-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question98\" id=\"question98_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question98_2\">\n\t\t\t\t\tExamples include RANK() and LEAD()\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question98-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question98\" id=\"question98_3\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question98_3\">\n\t\t\t\t\tThey modify the number of rows returned\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question98-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question98\" id=\"question98_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question98_4\">\n\t\t\t\t\tThey can be used with OVER() clause\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question98_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question98\" id=\"question98_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_98\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-86 \" data-qid=\"86\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Which of these is not a SQL data type? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question86-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question86\" id=\"question86_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question86_1\">\n\t\t\t\t\tVARCHAR\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question86-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question86\" id=\"question86_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question86_2\">\n\t\t\t\t\tARRAYLIST\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question86-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question86\" id=\"question86_3\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question86_3\">\n\t\t\t\t\tFLOAT\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question86-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question86\" id=\"question86_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question86_4\">\n\t\t\t\t\tINTEGER\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question86_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question86\" id=\"question86_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_86\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-88 \" data-qid=\"88\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Which clause is used to sort the result-set? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question88-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question88\" id=\"question88_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question88_1\">\n\t\t\t\t\tSORT\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question88-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question88\" id=\"question88_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question88_2\">\n\t\t\t\t\tFILTER\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question88-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question88\" id=\"question88_3\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question88_3\">\n\t\t\t\t\tGROUP BY\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question88-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question88\" id=\"question88_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question88_4\">\n\t\t\t\t\tORDER BY\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question88_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question88\" id=\"question88_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_88\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-110 \" data-qid=\"110\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does this query return? 3 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32026 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.50.40-AM.png\" alt=\"\" width=\"640\" height=\"192\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.50.40-AM.png 966w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.50.40-AM-300x90.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.50.40-AM-768x231.png 768w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question110-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question110\" id=\"question110_1\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question110_1\">\n\t\t\t\t\tAll departments with employee counts\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question110-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question110\" id=\"question110_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question110_2\">\n\t\t\t\t\tAll employees without grouping\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question110-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question110\" id=\"question110_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question110_3\">\n\t\t\t\t\tDepartment with the largest number of employees\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question110-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question110\" id=\"question110_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question110_4\">\n\t\t\t\t\tDepartment with the smallest number of employees\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question110_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question110\" id=\"question110_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_110\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-102 \" data-qid=\"102\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What is the role of HAVING here? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32019 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.39.22-AM.png\" alt=\"\" width=\"660\" height=\"156\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.39.22-AM.png 956w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.39.22-AM-300x71.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.39.22-AM-768x182.png 768w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question102-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question102\" id=\"question102_1\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question102_1\">\n\t\t\t\t\tJoins two tables\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question102-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question102\" id=\"question102_2\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question102_2\">\n\t\t\t\t\tFilters groups after calculating the average salary\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question102-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question102\" id=\"question102_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question102_3\">\n\t\t\t\t\tSorts the salary\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question102-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question102\" id=\"question102_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question102_4\">\n\t\t\t\t\tFilters employees before grouping\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question102_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question102\" id=\"question102_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_102\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-112 \" data-qid=\"112\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does this query do? 3 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32028 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.57.14-AM.png\" alt=\"\" width=\"532\" height=\"186\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.57.14-AM.png 738w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.57.14-AM-300x105.png 300w\" sizes=\"auto, (max-width: 532px) 100vw, 532px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question112-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question112\" id=\"question112_1\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question112_1\">\n\t\t\t\t\tUpdates all orders to Shipped regardless of date\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question112-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question112\" id=\"question112_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question112_2\">\n\t\t\t\t\tShips all new orders only\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question112-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question112\" id=\"question112_3\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question112_3\">\n\t\t\t\t\tDeletes old pending orders\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question112-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question112\" id=\"question112_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question112_4\">\n\t\t\t\t\tChanges status of orders before 2025-01-01 to Shipped if they are Pending\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question112_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question112\" id=\"question112_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_112\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-85 \" data-qid=\"85\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Which SQL statement is used to extract data from a database? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question85-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question85\" id=\"question85_1\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question85_1\">\n\t\t\t\t\tPULL\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question85-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question85\" id=\"question85_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question85_2\">\n\t\t\t\t\tEXTRACT\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question85-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question85\" id=\"question85_3\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question85_3\">\n\t\t\t\t\tGET\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question85-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question85\" id=\"question85_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question85_4\">\n\t\t\t\t\tSELECT\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question85_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question85\" id=\"question85_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_85\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-100 \" data-qid=\"100\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What is the purpose of DISTINCT here? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32017\" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.36.56-AM-300x68.png\" alt=\"\" width=\"428\" height=\"97\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.36.56-AM-300x68.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.36.56-AM.png 720w\" sizes=\"auto, (max-width: 428px) 100vw, 428px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question100-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question100\" id=\"question100_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question100_1\">\n\t\t\t\t\tReturns all department names including duplicates\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question100-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question100\" id=\"question100_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question100_2\">\n\t\t\t\t\tSorts the departments alphabetically\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question100-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question100\" id=\"question100_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question100_3\">\n\t\t\t\t\tReturns unique department names only\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question100-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question100\" id=\"question100_4\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question100_4\">\n\t\t\t\t\tCounts department occurrences\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question100_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question100\" id=\"question100_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_100\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-91 \" data-qid=\"91\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What will COUNT(*) return? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question91-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question91\" id=\"question91_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question91_1\">\n\t\t\t\t\tNumber of rows including NULL values\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question91-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question91\" id=\"question91_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question91_2\">\n\t\t\t\t\tSum of numeric columns\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question91-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question91\" id=\"question91_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question91_3\">\n\t\t\t\t\tAverage of numeric columns\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question91-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question91\" id=\"question91_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question91_4\">\n\t\t\t\t\tNumber of rows excluding NULL values\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question91_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question91\" id=\"question91_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_91\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-99 \" data-qid=\"99\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does this query return? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32016 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.35.25-AM.png\" alt=\"\" width=\"516\" height=\"141\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.35.25-AM.png 768w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.35.25-AM-300x82.png 300w\" sizes=\"auto, (max-width: 516px) 100vw, 516px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question99-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question99\" id=\"question99_1\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question99_1\">\n\t\t\t\t\tNames and ages of all employees regardless of age\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question99-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question99\" id=\"question99_2\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question99_2\">\n\t\t\t\t\tAll employees older than 30 (name and age)\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question99-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question99\" id=\"question99_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question99_3\">\n\t\t\t\t\tOnly names of employees older than 30\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question99-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question99\" id=\"question99_4\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question99_4\">\n\t\t\t\t\tAll columns of employees older than 30\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question99_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question99\" id=\"question99_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_99\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-95 \" data-qid=\"95\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Which SQL function is used for ranking rows? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question95-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question95\" id=\"question95_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question95_1\">\n\t\t\t\t\tROW_NUMBER()\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question95-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question95\" id=\"question95_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question95_2\">\n\t\t\t\t\tDENSE_RANK()\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question95-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question95\" id=\"question95_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question95_3\">\n\t\t\t\t\tAll of the above\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question95-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question95\" id=\"question95_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question95_4\">\n\t\t\t\t\tRANK()\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question95_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question95\" id=\"question95_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_95\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-103 \" data-qid=\"103\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does this query return? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32063 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.41.04-AM.png\" alt=\"\" width=\"573\" height=\"110\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.41.04-AM.png 1086w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.41.04-AM-300x57.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.41.04-AM-1024x196.png 1024w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.41.04-AM-768x147.png 768w\" sizes=\"auto, (max-width: 573px) 100vw, 573px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question103-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question103\" id=\"question103_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question103_1\">\n\t\t\t\t\tEmployees earning less than the average salary\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question103-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question103\" id=\"question103_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question103_2\">\n\t\t\t\t\tAll employee names and salaries\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question103-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question103\" id=\"question103_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question103_3\">\n\t\t\t\t\tEmployees earning more than the average salary\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question103-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question103\" id=\"question103_4\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question103_4\">\n\t\t\t\t\tThe average salary itself\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question103_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question103\" id=\"question103_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_103\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-101 \" data-qid=\"101\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What will this return? 2 Marks <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32018 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.38.03-AM.png\" alt=\"\" width=\"557\" height=\"184\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.38.03-AM.png 720w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.38.03-AM-300x99.png 300w\" sizes=\"auto, (max-width: 557px) 100vw, 557px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question101-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question101\" id=\"question101_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question101_1\">\n\t\t\t\t\tEmployees without department information\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question101-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question101\" id=\"question101_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question101_2\">\n\t\t\t\t\tOnly department names without employees\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question101-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question101\" id=\"question101_3\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question101_3\">\n\t\t\t\t\tAll employees, even without department info\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question101-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question101\" id=\"question101_4\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question101_4\">\n\t\t\t\t\tEmployees matched with their departments\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question101_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question101\" id=\"question101_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_101\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-90 \" data-qid=\"90\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Which type of JOIN returns all rows from both tables, even if there is no match? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question90-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question90\" id=\"question90_1\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question90_1\">\n\t\t\t\t\tRIGHT JOIN\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question90-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question90\" id=\"question90_2\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question90_2\">\n\t\t\t\t\tLEFT JOIN\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question90-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question90\" id=\"question90_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question90_3\">\n\t\t\t\t\tFULL OUTER JOIN\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question90-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question90\" id=\"question90_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question90_4\">\n\t\t\t\t\tINNER JOIN\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question90_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question90\" id=\"question90_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_90\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-94 \" data-qid=\"94\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>A subquery inside a WHERE clause is called: <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question94-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question94\" id=\"question94_1\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question94_1\">\n\t\t\t\t\tNested query\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question94-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question94\" id=\"question94_2\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question94_2\">\n\t\t\t\t\tCorrelated query\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question94-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question94\" id=\"question94_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question94_3\">\n\t\t\t\t\tConstraint\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question94-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question94\" id=\"question94_4\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question94_4\">\n\t\t\t\t\tTrigger\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question94_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question94\" id=\"question94_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_94\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-89 \" data-qid=\"89\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>The default sorting order of ORDER BY is: <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question89-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question89\" id=\"question89_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question89_1\">\n\t\t\t\t\tAscending\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question89-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question89\" id=\"question89_2\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question89_2\">\n\t\t\t\t\tNone of the above\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question89-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question89\" id=\"question89_3\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question89_3\">\n\t\t\t\t\tRandom\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question89-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question89\" id=\"question89_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question89_4\">\n\t\t\t\t\tDescending\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question89_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question89\" id=\"question89_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_89\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-92 \" data-qid=\"92\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>Which of the following is a valid way to create a foreign key? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question92-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question92\" id=\"question92_1\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question92_1\">\n\t\t\t\t\tFOREIGN KEY (col) REFERENCES table(col)\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question92-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question92\" id=\"question92_2\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question92_2\">\n\t\t\t\t\tALTER TABLE ADD RELATION\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question92-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question92\" id=\"question92_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question92_3\">\n\t\t\t\t\tKEY FOREIGN (col)\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question92-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question92\" id=\"question92_4\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question92_4\">\n\t\t\t\t\tCREATE FK (col) IN table(col)\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question92_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question92\" id=\"question92_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_92\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<div class=\"quiz_section qsm-question-wrapper question-type-0 question-section-id-109 \" data-qid=\"109\">\n\t\t\t\t\t\t<div class='mlw_qmn_new_question'>What does this query return? <\/div>\n\t\t\t<div class='mlw_qmn_question  qsm_remove_bold' >\n\t\t<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-32025 \" src=\"http:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.49.28-AM.png\" alt=\"\" width=\"601\" height=\"137\" srcset=\"https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.49.28-AM.png 868w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.49.28-AM-300x68.png 300w, https:\/\/www.techstack.in\/blog\/wp-content\/uploads\/2025\/09\/Screenshot-2025-09-14-at-12.49.28-AM-768x175.png 768w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/p>\n\t<\/div>\n\t\t<fieldset>\n\t\t<legend><\/legend>\n\t<div class='qmn_radio_answers '>\n\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question109-1 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question109\" id=\"question109_1\" value=\"2\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question109_1\">\n\t\t\t\t\tEmployees earning between 40,000 and 60,000 (inclusive)\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question109-2 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question109\" id=\"question109_2\" value=\"1\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question109_2\">\n\t\t\t\t\tEmployees earning exactly 40,000 or 60,000\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question109-3 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question109\" id=\"question109_3\" value=\"3\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question109_3\">\n\t\t\t\t\tAll employees regardless of salary\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t<div class=\"qmn_mc_answer_wrap  mrq_checkbox_class\" id=\"question109-4 \">\n\t\t\t\t\t\t\t\t\t\t\t<input type='radio' class='qmn_quiz_radio qmn-multiple-choice-input ' name=\"question109\" id=\"question109_4\" value=\"0\" \/>\n\t\t\t\t\t<label class=\"qsm-input-label\" for=\"question109_4\">\n\t\t\t\t\tEmployees earning less than 40,000 or more than 60,000\t\t\t\t\t<\/label>\n\t\t\t\t\t \t\t\t\t<\/div>\n\t\t\t\t\t \t\t\t<label style=\"display: none !important;\" for=\"question109_none\">None<\/label>\n\t\t\t<input type=\"radio\" style=\"display: none;\" name=\"question109\" id=\"question109_none\" checked=\"checked\" value=\"\" \/>\n\t\t\t\t<\/div>\n\t<\/fieldset>\n\t<input type=\"hidden\" name=\"answer_limit_keys_109\" value=\"\" \/>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/section>\n\t\t\t\t\t<input type=\"hidden\" name=\"qmn_question_list\" value=\"113Q105Q104Q108Q96Q87Q97Q106Q93Q107Q111Q98Q86Q88Q110Q102Q112Q85Q100Q91Q99Q95Q103Q101Q90Q94Q89Q92Q109Q\" \/>\n\t\t\t\t\t\t\t<div id=\"mlw_error_message_bottom\" class=\"qsm-error-message qmn_error_message_section\"><\/div>\n\t\t\t\t\t<input type=\"hidden\" name=\"qmn_all_questions_count\" id=\"qmn_all_questions_count\" value=\"29\" \/>\n\t\t\t\t\t<input type=\"hidden\" name=\"total_questions\" id=\"total_questions\" value=\"29\" \/>\n\t\t\t\t\t<input type=\"hidden\" name=\"timer\" id=\"timer\" value=\"0\" \/>\n\t\t\t\t\t<input type=\"hidden\" name=\"timer_ms\" id=\"timer_ms\" value=\"0\"\/>\n\t\t\t\t\t<input type=\"hidden\" class=\"qmn_quiz_id\" name=\"qmn_quiz_id\" id=\"qmn_quiz_id\" value=\"3\" \/>\n\t\t\t\t\t<input type='hidden' name='complete_quiz' value='confirmation' \/>\n\t\t\t\t\t\t\t\t\t\t\t<input type=\"hidden\" name=\"quiz_answer_random_ids\" id=\"quiz_answer_random_ids_3\" 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\/>\n\t\t\t\t\t\t\t\t\t\t<\/form>\n\t\t<\/div>\n\t\t<div style=\"display: none;\" class=\"qsm-popup qsm-popup-slide\" id=\"modal-4\" aria-hidden=\"false\"><div class=\"qsm-popup__overlay\" tabindex=\"-1\" data-micromodal-close=\"\"><div class=\"qsm-popup__container qmn_quiz_container\" role=\"dialog\" aria-modal=\"true\"><div class=\"qsm-popup__content\"><img decoding=\"async\" src=\"https:\/\/www.techstack.in\/blog\/wp-content\/plugins\/quiz-master-next\/assets\/clock.png\" alt=\"clock.png\"\/><p class=\"qsm-time-up-text\"> Time's up<\/p><\/div><footer class=\"qsm-popup__footer\"><button class=\"qsm-popup-secondary-button qmn_btn\" data-micromodal-close=\"\" aria-label=\"Close this dialog window\" onclick=\"location.reload();\">Cancel<\/button><\/footer><\/div><\/div><\/div>[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"<p>[vc_row content_style=&#8221;content_dark&#8221;][vc_column 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