On 6 Oct 2009, at 18:57, Jonathan Vanasco wrote:
> i think this attempt most clearly expresses what I was trying to do
>
> UPDATE table_a a set id_field = ( SELECT id_field FROM table_b b
> WHERE a.first_name || ' ' || b.last_name = a.fullname ) WHERE
> id_field IS NULL ;
>
> I'd be greatful if anyone has a pointer
You're looking for UPDATE FROM:
UPDATE table_a SET id_field = table_b.id_field FROM table_b WHERE
table_a.firstname || ' ' || table_b.last_name = table_a.fullname AND
table_a.id_field IS NULL;
Apparently table_a.id_field is not a primary key? Seems a bit weird to
me, but if it floats your boat...
Alban Hertroys
--
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