Re: best way to swap two records (computer details)

On Friday 18 March 2005 7:54 pm, you wrote:
> > My question is what's the best way to swap settings between the two
> > computer records and swap any software installed? Ideally I'd like
> > it in the form of a function where I can pass the two p_id's and
> > return a boolean reflecting success (true) or fail (false).
>
> I'd say something like that (generic table names) :
>
> If you're confident :
> UPDATE stuff SET owner = (CASE IF owner='A' THEN 'B' ELSE 'A' END)
> WHERE owner IN ('A','B')
>
> If you're paranoid :
> UPDATE stuff SET owner = (CASE IF owner='A' THEN 'B' ELSE IF
> owner='B' THEN 'A' ELSE owner END) WHERE owner IN ('A','B')

Hello again.

I've tried the first one but get a syntax error. Anyone see why?

hardware=# update pieces set p_owner = (case if p_owner = 305 then 724
else 305 end) where p_owner in (305, 724);
ERROR: parser: parse error at or near "p_owner"
hardware=#

--
Gary Stainburn

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