At 06:13 PM 2/25/2007, Miles Thompson wrote:
Would someone please check this delete query?
This should delete all rows from the geodesic_user_data that have no match
in the subscriber table, but another set of eyes would be appreciated.
DELETE geodesic_user_data
FROM geodesic_user_data
LEFT JOIN subscriber ON geodesic_classifieds_userdata.id=subscriber.GeoClassID
WHERE subscriber.GeoClassID IS NULL;
Our hosting company uses MySQL 4.0.17 so the subquery approach is not
possible.
Thanks in advance - Miles
Miles,
It looks fine but you could have checked it yourself using:
select *
FROM geodesic_user_data
LEFT JOIN subscriber ON geodesic_classifieds_userdata.id=subscriber.GeoClassID
WHERE subscriber.GeoClassID IS NULL;
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