Mutating error in code..help required?

Question

hi All,
I have applied trigger on emp as below....
CREATE OR REPLACE TRIGGER trig_emp
AFTER INSERT OR UPDATE OR DELETE
ON EMP
FOR EACH ROW
DECLARE
     PRAGMA AUTONOMOUS_TRANSACTION;
BEGIN
     IF INSERTING THEN
                    PKG_PC.TRIG_PROC_INS;
     ELSIF DELETING THEN
          dbms_output.PUT_LINE('hye..deleting');
     ELSIF UPDATING THEN
                    PKG_PC.TRIG_PROC_UPD;
     END IF;
EXCEPTION
          WHEN OTHERS THEN
               dbms_output.PUT_LINE('exception occured'||SUBSTR(SQLERRM,1,100));
END;
pkg_pc code is as below.....
CREATE OR REPLACE PACKAGE PKG_PC
AS
     PROCEDURE TRIG_PROC_INS ;
     PROCEDURE TRIG_PROC_UPD ;
END;
CREATE OR REPLACE PACKAGE BODY PKG_PC
AS
     PROCEDURE TRIG_PROC_INS
     AS
          curdate date;
     BEGIN
          SELECT sysdate INTO CURDATE
          FROM dual;
          -- EXECUTE IMMEDIATE 'TRUNCATE TABLE EMP_LOG';
          INSERT INTO EMP_LOG(LOG_STEP, LOG_DATE)
          VALUES('INSERT',SYSDATE );
--          SELECT E.* ,'INSERT',SYSDATE          FROM EMP E;
          dbms_output.put_line('PROCEDURE called for inserting from trigger at-'||CURDATE);
     END;
     PROCEDURE TRIG_PROC_UPD
     AS
          curdate date;
          -- PRAGMA AUTONOMOUS_TRANSACTION;
     BEGIN
          INSERT INTO EMP_LOG --(LOG_STEP, LOG_DATE)
          -- VALUES('UPDATE',SYSDATE );
          SELECT E.* ,'UPDATE' ,SYSDATE     FROM EMP E;
          SELECT sysdate INTO CURDATE
          FROM dual;
          dbms_output.put_line('PROCEDURE called for UPDATING from trigger at-'||CURDATE);
     END;
END;
kindly direct why i am getting msg as below when I am running update stmnt...
UPDATE EMP
SET SAL=5000
WHERE EMPNO=1;
o/p msg -
PROCEDURE called for UPDATING from trigger at-07-SEP-10
exception occuredORA-06519: active autonomous transaction detected and rolled back
rgds,
pc

Answer 1

hi
PROCEDURE TRIG_PROC_UPD
AS
curdate date;
PRAGMA AUTONOMOUS_TRANSACTION;
BEGIN
INSERT INTO EMP_LOG (LOG_STEP, LOG_DATE)
VALUES('UPDATE',SYSDATE );
--SELECT E.* ,'UPDATE' ,SYSDATE FROM EMP E;
SELECT sysdate INTO CURDATE
FROM dual;
dbms_output.put_line('PROCEDURE called for UPDATING from trigger at-'||CURDATE);
commit; /**Always you should End your Transaction in Autonomous Block ***/
END;Regards,
Achyut