How can i implement the default value for this variable?

Question

In one of our Stored procs,we have a variable RECS_TO_DELETE, which determines the number of records to delete from various DELETEs that happen within this proc.
The value for RECS_TO_DELETE variable should be obtained from a configuration table sys_config
select
rec_num into RECS_TO_DELETE
from sys_config
where
sys_code=55;
But if something goes wrong with sys_config table or the above SELECT INTO, our client wants to makes sure that RECS_TO_DELETE should have a default value of 1000.
In the code, how will i implement having this default value of 1000 for RECS_TO_DELETE variable  in case the above SELECT INTO fails for some reason.

Answer 1

Hi,
You have to assign a value before the execution...
DECLARE
    RECS_TO_DELETE NUMBER(9) := 1000;
BEGIN
    SELECT rec_num
    INTO   RECS_TO_DELETE
    FROM   sys_config
    WHERE  sys_code = 55;
    DBMS_OUTPUT.put_line(RECS_TO_DELETE);
EXCEPTION
    WHEN NO_DATA_FOUND THEN
       DBMS_OUTPUT.put_line(RECS_TO_DELETE);
END;
/Regards,