Oracle PL/SQL Functions

Question

Hi Guys,
When creating procedures and functions in PL/SQL please can somebody clarify the difference in using IS and AS keywords.
Best Regards,
Shaz

Answer 1

You can use either 'AS' or 'IS' as you prefer.
See the PL/SQL language reference - http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/subprograms.htm#CHDBEJGF
It has examples and uses both of these. Here is one that uses IS
Example 8-3 Creating Nested Subprograms that Invoke Each Other
DECLARE
  -- Declare proc1 (forward declaration):
  PROCEDURE proc1(number1 NUMBER);
  -- Declare and define proc 2:
  PROCEDURE proc2(number2 NUMBER) IS
  BEGIN
    proc1(number2);
  END;But this one uses AS
Example 8-17 Invoking an IR Instance Methods
-- OE creates a procedure that invokes change_job
CREATE PROCEDURE reassign
  (p IN OUT NOCOPY hr.person_typ, new_job VARCHAR2) AS
BEGIN
   p.change_job(new_job); -- executes with the privileges of oe
END;
-- OE grants EXECUTE to HR on procedure reassign
GRANT EXECUTE ON reassign to HR;
-- HR passes a person_typ object to the procedure reassign
DECLARE
   p1 person_typ;
BEGIN
   p1 := person_typ(1004,  'June Washburn', 'SALES');
   oe.reassign(p1, 'CLERK'); -- current user is oe, not hr
END;
/