Ronin <jkoorts@gmail.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
--
Really, I'm not out to destroy Microsoft. That will just be a completely
unintentional side effect. (Linus Torvalds)
"If I was god, I would recompile penguin with --enable-fly." (unknow)
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