Showing posts with label Interview Questions. Show all posts
Showing posts with label Interview Questions. Show all posts

Thursday, 14 April 2016

What are the types of triggers?

There are 12 types of triggers in PL/SQL that consist of combinations of the BEFORE, AFTER, ROW, TABLE, INSERT, UPDATE, DELETE and

ALL key words:
BEFORE ALL ROW INSERT
AFTER ALL ROW INSERT
BEFORE INSERT
AFTER INSERT etc.

:- Lalit Bhutka

Wednesday, 13 April 2016

Describe the use of %ROWTYPE and %TYPE in PL/SQL


%ROWTYPE: It is responssible to declare a variable as tables structure type where as

%TYPE: it is responssible to declare a variable as tsbles column type.

:- Lalit Bhutka