Topic: SQL*Plus and PL/SQL >> About Function
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| bhmadhukar |
Posted: Feb 07, 2008 07:49:52 AM |
Total Post: 14
Joined: Jan, 2008
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Why actually we [Is|AS] in function? Plz Clearly Specify the difference and usage of using IS & AS? Why & when?
In adv. thanx |
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 Garlapati |
| Posted: Feb 08, 2008 12:16:27 AM |  |
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Total Post: 30
Joined: Apr, 2007
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Hi,
ACCORDING MY KNOWLEDGE, I think nothing differen of
In / As both we can use in function or procedure
like
create or replace procedure <procedurename>(<parameters>)
IS / AS
IF ANY WRONG PLZ LET ME KNOW.
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| bhmadhukar |
| Posted: Feb 15, 2008 12:35:17 AM | |
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Total Post: 14
Joined: Jan, 2008
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Below shows the difference between [IS/AS] used with function.
As: When a function is returning a value with the help of local variable to that function 'AS' keyword is used.
ex:
create or replace function pivalue
return number as
pi number;
begin
pi:=3.14;
return pi;
end pivalue;
/
Is: When a function is returning a value with the help of parameter/argument and without help of local variable, 'IS' keyword is used.
ex:
create or replace function pivalue
return number is
begin
null;
return 3.14;
end pivalue;
/
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