On Thursday, 29. March 2001 01:38, David Olbersen wrote:
[snip]
> SELECT
> building_id,
> num_buildings,
> (
> SELECT count( building_id )
> FROM building_portals
> WHERE building_id = THIS.building_id
> )
> FROM buildings;
Try this query (untested), using table aliases:
SELECT
b.building_id, b.num_buildings,
( SELECT count( bp.building_id )
FROM building_portals bp
WHERE bp.building_id = b.building_id )
FROM buildings b;
You could also write <table>.<field> instead.
Hope that helps.
Christof
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