Hi:
I want to use to trigger on deletion of a detail record to
automatically delete a summary record, if not more detail records
exist, something like:
CREATE TRIGGER detail_delete AFTER DELETE ON detail
BEGIN
-- here I don't know syntax
IF COUNT(detail records with key) = 0 DELETE summary WHERE key=old.key;
END;
Is something like this possible to do? Any suggestions.
Thanks in advance
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