In my previous posts, I have given examples for Bulk Collect operations in Oracle. Here is an example of Bulk Collect with Save Exceptions to handle errors during bulk collect processing.
PL/SQL Bulk Collect With Save Exceptions Example
In the following PL/SQL program, it will update the HR schema EMPLOYEES table LAST_NAME column, and in two attempts it will try to update with a NULL value, which is not allowed for the LAST_NAME column due to not null constraint is applied. So, in this case, it will raise the error, and it will print on the screen, but the task will continue to update for other records because here we are using Save Exceptions clause with Bulk Collect.
SET SERVEROUTPUT ON
--Start the PL/SQL block--
DECLARE
--A local PL/SQL table holds the list of new names--
TYPE T_EMP IS TABLE OF VARCHAR2 (100);
L_EMP T_EMP
:= T_EMP ('Smith',
'Adams',
NULL,
'King',
NULL,
'George');
BULK_ERRORS EXCEPTION;
PRAGMA EXCEPTION_INIT (BULK_ERRORS, -24381);
BEGIN
--FORALL to update the employee names--
FORALL I IN 1 .. L_EMP.COUNT
SAVE EXCEPTIONS
UPDATE EMPLOYEES
SET last_NAME = L_EMP (I);
EXCEPTION
--BULK_ERRORS exception handler--
WHEN BULK_ERRORS
THEN
--Display the errors occurred during BULK DML transaction--
FOR J IN 1 .. SQL%BULK_EXCEPTIONS.COUNT
LOOP
DBMS_OUTPUT.PUT_LINE (CHR (10));
DBMS_OUTPUT.PUT_LINE (
'Error in UPDATE: ' || SQL%BULK_EXCEPTIONS (J).ERROR_INDEX);
DBMS_OUTPUT.PUT_LINE (
'Error Code is: ' || SQL%BULK_EXCEPTIONS (J).ERROR_CODE);
DBMS_OUTPUT.PUT_LINE('Error Message is: '
|| SQLERRM('-'
|| SQL%BULK_EXCEPTIONS (J).ERROR_CODE));
END LOOP;
END;
/
COMMIT
/Output
Error in UPDATE: 3 Error Code is: 1407 Error Message is: ORA-01407: cannot update () to NULL Error in UPDATE: 5 Error Code is: 1407 Error Message is: ORA-01407: cannot update () to NULL PL/SQL procedure successfully completed. Commit complete.
See also:
- How to ZIP a File in PL/SQL?
- How to UNZIP a File in PL/SQL?
- Select Bulk Collect into Oracle Example
