PL SQL interview questions and answers Pdf free download
PL/SQL stands for Procedural Language extension of SQL. PL/SQL is a combination of SQL along with the procedural features of programming languages. This was developed by Oracle Corporation in the early 90’s to enhance the capabilities of SQL. Oracle uses the PL/SQL engine to processes the PL/SQL statements. A PL/SQL code can be stored in the client system) or in the database. This Oracle PL SQL interview question papers teaches you the PL/SQL with appropriate examples.
Here are giving some PL SQL interview sample questions and answers.
What is difference between a PROCEDURE & FUNCTION ?
A FUNCTION is always returns a value using the return statement.
A PROCEDURE may return one or more values through parameters or may not return at all.
A function can be called from sql statements and queries while procedure can be called in a begin end block only.
How to disable multiple triggers of a table at at a time?
ALTER TABLE<TABLE NAME> DISABLE ALL TRIGGER
ALTER TABLE TT_DCB DISABLE ALL TRIGGERS
What is pl/sql? what are the advantages of pl/sql?
PL/SQL(a product of Oracle) is the 'programming language' extension of sql.
It is a full-fledged language although it is specially designed for database centric activities.
What are the components of a PL/SQL block ?
A set of related declarations and procedural statements is called block.
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