Answer Posted / arun raj

u can define a trigger
1. For Each Row
2. For Each Statement

You can have the following triggers defined for the above
two types:
1. BEFORE INSERT
2. BEFORE UPDATE
3. BEFORE DELETE
4. AFTER INSERT
5. AFTER UPDATE
6. AFTER DELETE

So it makes a total of 12.

in user parameter property we have list of values.can we write select query for binding? for example:: select empno from emp where deptno=:deptnum :deptnum is first parameter it displays distinct dept nos. if i do like this it is giving error:: bind variables are not allowed in the select statement

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