Thanks for the question, Ridheen.
Asked: December 14, 2017 - 1:52 pm UTC
Last updated: December 15, 2017 - 7:05 am UTC
Version: oracle 12c
Viewed 1000+ times
You Asked
Dear Tom
My requirement is..
I need to create a trigger for a empty table, where the data will be inserted into the columns.
i need to multiply the inserting values by a function which is already created and the result should be stored into the another column of same table or the same column of same table.
the trigger should do this activity.
Kindly do the need full.
Send mail if possible : ridheen.sudevan@niyuj.com
and Connor said...
Sounds like student homework to me ... but since its christmas :-)
SQL> create table t ( x int, y int );
Table created.
SQL>
SQL> create or replace function f(p_in number) return number is
2 begin
3 return p_in*2;
4 end;
5 /
Function created.
SQL>
SQL>
SQL> create or replace
2 trigger trg
3 before insert on t
4 for each row
5 begin
6 :new.y := f(:new.x);
7 end;
8 /
Trigger created.
SQL> insert into t(x) values (1);
1 row created.
SQL> select * from t;
X Y
---------- ----------
1 2