select * from DBA_PROCEDURES
select * from dba_errors
CREATE FUNCTION get_bal(acc_no IN NUMBER)
RETURN NUMBER
IS acc_bal NUMBER(11,2);
BEGIN
SELECT order_total
INTO acc_bal
FROM orders
WHERE customer_id = acc_no;
RETURN(acc_bal);
END;
ALTER FUNCTION oe.get_bal COMPILE;
DROP FUNCTION [schema.]function
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