{"id":8659,"date":"2023-12-04T06:06:00","date_gmt":"2023-12-04T00:36:00","guid":{"rendered":"https:\/\/www.monsterindia.com\/career-advice\/top-8-pl-sql-interview-questions-you-must-prepare-for-your-next-interview-8659\/"},"modified":"2023-12-04T14:30:48","modified_gmt":"2023-12-04T09:00:48","slug":"top-8-pl-sql-interview-questions-you-must-prepare-for-your-next-interview","status":"publish","type":"post","link":"https:\/\/www.monster.com.vn\/career-advice\/top-8-pl-sql-interview-questions-you-must-prepare-for-your-next-interview\/","title":{"rendered":"Top 8 PL\/SQL Interview Questions and Answers"},"content":{"rendered":"\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\"><\/span><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">Being prepared for your PL\/SQL interview is the most important step in your job search process. It is important to know that first impressions matter and could very well be the decisive factor in getting that job you\u2019ve been trying for.<\/span><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\"><strong>List of PL\/SQL Interview Questions and Answers <\/strong><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q1. Can you describe 3 advisory statistics that you can gather?<\/strong><\/h3>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">The three advisory statistics that can be collected are: <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 Buffer Cache Advice <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 Segment Level Statistics <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 Timed Statistics <\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q2. Can you explain what a Cursor is along with its different attributes?<\/strong><\/h3>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">Cursor is a temporary buffer area which has been created in the system memory when an SQL statement is executed. It is used in order to process multiple records and also record by record tabs. There are two types of cursors available: Implicit Cursors and Explicit Cursors. <\/span><\/p>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">In addition, there are four different cursor attributes listed as under: <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 %Found <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 %Not Found <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 %Isopen <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 %Rowcount <\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q3. Explain the process to rollback a particular part of a procedure or any PL\/SQL Program.<\/strong><\/h3>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">During definition of a PL\/SQL program, Savepoints allows you to rollback part of a transaction instead of the whole transaction. <\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q4. Can you describe the range of the Error Codes in PL\/SQL Exceptions?<\/strong><\/h3>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">The error codes in PL\/SQL Exception falls between the range of -20000 to -20899. <\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q5. Can you highlight the various methods used to trace the PL\/SQL code?<\/strong><\/h3>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">Tracing code can be described as an important function which is used to measure the performance of the code during the runtime. Accordingly, there are four different methods which are used for tracing. These are: <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 DBMS_APPLICATION_INFO <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 DBMS_TRACE <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 DBMS_SESSION and DBMS_MONITOR <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 trcsess and tkproof utilities <\/span><\/p>\n\n\n\n<script type=\"application\/ld+json\">\n \n    },\n     \n    },\n     \n    },\n     \n    },\n     \n    }\n  ]\n}\n<\/script>\n\n\n\n<p><strong>Q6. What are sequences in PL\/SQL?<\/strong><\/p>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">Sequences are objects that are used to generate a number sequence without an overhead of locking. This comes particularly handy when one needs to create a unique number in order to act as a primary key. However, the one disadvantage is that the sequence number is lost if a rollback is executed on a transaction. <\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q7. Can you list out the various loops available in the PL\/SQL Database?<\/strong><\/h3>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">The following loops are used in PL\/SQL: <\/span><\/p>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 Simple Loop <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 For Loop <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 Nested Loop <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">\u2022 While Loop <\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Q8. Describe the various data types that are available in PL\/SQL.<\/strong><\/h3>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">There are two primary data types available in PL\/SQL. These are further subdivided into several data types which are as under: <\/span><\/p>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">1. Composite Data Types: Record, Table, etc. <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">2. Scalar Data Types: Date, Number, Boolean, Varchar, Long, Varchar2, etc. <\/span><\/p>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">Here\u2019s an additional list of 8 popular PL\/SQL interview questions if you&#8217;re on the lookout for a few more examples that are likely to be asked during your interview. <\/span><\/p>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">1. Can you explain the difference between a Function, Procedure, and a Package? <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">2. Can you describe the difference between the SQL*loader and import utilities? <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">3. Can you point out the different types of Exceptions? <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">4. Describe the concept of context area in PL\/SQL. <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">5. Point out the Default Cursor in Oracle PL\/SQL. <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">6. Describe what SQLERRM and SQLCODE are and explain their importance. <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">7. List out the different Loop Control Structures used in PL\/SQL. <\/span><br><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">8. Can you touch upon the concepts of Union, Union All, Intersect and Minus in PL\/SQL? <\/span><\/p>\n\n\n\n<p><span style=\"font-family: verdana,geneva,sans-serif; font-size: 12pt;\">If you\u2019re not confident, make sure to practice your answers in front of friends\/family so that you can feel more comfortable. In addition, ensure that you arrive at your interview at least 10-20 minutes before time so you have time to gather your thoughts.<\/span><\/p>\n\n\n\n<p><strong>Related Articles :<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><a href=\"https:\/\/www.monster.com.vn\/career-advice\/8-essential-interview-questions-for-hr-professionals\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><strong>HR Professionals Interview Questions &amp; Answers<\/strong><\/a><\/td><td><a href=\"https:\/\/www.monster.com.vn\/career-advice\/functional-testing-interview-question-and-answers\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><strong>Functional Testing Interview Questions and Answers<\/strong><\/a><\/td><\/tr><tr><td><a href=\"https:\/\/www.monster.com.vn\/career-advice\/common-analytical-interview-questions\/\" target=\"_blank\" rel=\"noopener\" title=\"\"><strong>Analytical Interview Questions<\/strong><\/a><\/td><td><strong><a href=\"https:\/\/www.monster.com.vn\/career-advice\/20-common-sql-interview-questions-answers\/\" target=\"_blank\" rel=\"noopener\" title=\"\">&nbsp;SQL Interview Questions &amp; Answers<\/a><\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Being prepared for your PL\/SQL interview is the most important step in your job search process. It is important to know that first impressions matter and could very well be the decisive factor in getting that job you\u2019ve been trying for. List of PL\/SQL Interview Questions and Answers Q1. Can you describe 3 advisory statistics [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8660,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[147],"tags":[],"class_list":{"0":"post-8659","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-interview-questions"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/posts\/8659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/comments?post=8659"}],"version-history":[{"count":6,"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/posts\/8659\/revisions"}],"predecessor-version":[{"id":23373,"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/posts\/8659\/revisions\/23373"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/media\/8660"}],"wp:attachment":[{"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/media?parent=8659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/categories?post=8659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.monster.com.vn\/career-advice\/wp-json\/wp\/v2\/tags?post=8659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}