What is the difference between "AS" and "IS" in an Oracle stored procedure?

oracle stored-procedures keyword
Ishmaeel picture Ishmaeel · Oct 23, 2008 · Viewed 61.9k times · Source

I see Oracle procedures sometimes written with "AS", and sometimes with "IS" keyword. 

CREATE OR REPLACE Procedure TESTUSER.KILLINSTANCE (INSTANCEID integer) **AS**
...

vs.

CREATE OR REPLACE Procedure TESTUSER.KILLINSTANCE (INSTANCEID integer) **IS**
...

Is there any difference between the two?

Edit: Apparently, there is no functional difference between the two, but some people follow a convention to use "AS" when the SP is part of a package and "IS" when it is not. Or the other way 'round. Meh.

Answer

Tony Andrews picture Tony Andrews · Oct 23, 2008

None whatsover. They are synonyms supplied to make your code more readable:

FUNCTION f IS ...

CREATE VIEW v AS SELECT ...

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