How to Know, No. of Rows has been Update, throught Triggers

Question

Hi all,
I am having problem in after update trigger. I want to know How many rows has been updated by a sql statement, for that I have written on (AFTER UPDATE TRIGGER ON EMP). But it is not giving any result. I am executing Update statement from
Sqlplus (UPDATE EMP SET SAL=23 WHERE EMPNO=7369;) We cant use Commit, and dbms_output.put_line in trigger. thats why I have used exception.
CREATE OR REPLACE TRIGGER EMP_UPDATE AFTER UPDATE ON EMP
DECLARE
NO      NUMBER;
NOROW      EXCEPTION;
PRAGMA      EXCEPTION_INIT(NOROW, -20101);
BEGIN
NO:=SQL%ROWCOUNT;
IF NO<>0 THEN
RAISE_APPLICATION_ERROR(-20101,'Some Rows UPDATED');
END IF;
END;

Answer 1

Hi Sachindra
What SQL*Plus version you are using?
Some versions that come with forms6i they dont write the number of rows updated, they just write operation 44 succeeded or something like that.
But if you use the SQL*Plus database client (sqlplusw.exe or sqlplus.exe) which those 2 get installed with the db you will be able to see the number of rows update/deleted/inserted
SQL> conn scott/tiger
Connected.
SQL> DESC EMP
Name Null? Type
EMPNO NOT NULL NUMBER(4)
ENAME VARCHAR2(10)
JOB VARCHAR2(9)
MGR NUMBER(4)
HIREDATE DATE
SAL NUMBER(7,2)
COMM NUMBER(7,2)
DEPTNO NUMBER(2)
SQL> UPDATE EMP SET SAL = 23 WHERE EMPNO = 7369;
1 row updated.
SQL>
Hope this helps
Regards
Tony G.