Wednesday, April 21, 2010

Oracle PL/SQL Interview Questions-2

What are % TYPE and % ROWTYPE ? What are the advantages of using these over datatypes?

How we can create a table through procedure ?

Explain the two type of Cursors ?

What is difference between a Cursor declared in a procedure and Cursor declared in a package
specification ?

How to disable multiple triggers of a table at at a time?

How to avoid using cursors? What to use instead of cursor and in what cases to do so?

What is Overloading of procedures ?

Can we declare a column having number data type and its scale is larger than pricesion ex: column_name NUMBER(10,100), column_name NUMBAER(10,-84)

What happens if a procedure that updates a column of table X is called in a database trigger of the same table ?

What is NVL?

What are the two parts of a procedure ?

Write the order of precedence for validation of a column in a table ? I. done using Database triggers. ii. done using Integarity Constraints.

What is Character Functions?

What is Rollback?

What are the cursor attributes used in PL/SQL ?


In a Distributed Database System Can we execute two queries simultaneously ? Justify ?

In pl/sql functions what is use of out parameter even though we have return statement.

What are advantages fo Stored Procedures

What is SPOOL?

What is Intersect?

                                    Next>>