Database triggers do not fire on TRUNCATE DELETE allows the filtered deletion.TRUNCATE commits after deleting the entire table i.e., cannot be rolled back.We can remove bulk amount of records at a time.What is the difference between TRUNCATE & DELETE? The value can be a constant, pseudocolumn or expression that is not derived from a table with user data.Ģ. The Dual Table is useful when you want to return a value only once. It contains one columnDummy and one row with the value X. We will be covering Oracle PL/SQL scenario based interview questions, Oracle PL/SQL interview questions for freshers as well as Oracle PL/SQL interview questions and answers for experienced.ĭual table is owned by the user SYS and can be accessed by all users. As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based on further discussion and what you answer.we are going to cover top 100 Oracle PL/SQL Interview questions along with their detailed answers. These Oracle PL/SQL Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of Oracle PL/SQL.
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