Re: hi, what is wrong with my newbie sql?

[Andreas Kretschmer <akretschmer(at)spamfence(dot)net>]

Ronin <jkoorts(at)gmail(dot)com> schrieb:

> Hi, the following sql returns "10" and not "20" as would be expected.
> 
> Where is the error? This would for sure work in any programming
> language, why is this different?
> 
> CREATE FUNCTION test () RETURNS INTEGER AS '
> 
> 	DECLARE
> 		k integer;
> 
> 	BEGIN
> 		k = 10;
> 		FOR k IN 1..10 LOOP
> 			k = k +1;
> 		END LOOP;
> 
> 		return k;
> 	END;

I think, the inner k = k + 1; is not visible outer. The loop runs from
k=1 to k=10, and the returning k is the last loop-value k, 10.

You need a extra variable for the loop-counter.


Andreas
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