//titleauthor is foreigntable
//titles Primary Table......When you delete data from Primary automatically delete data from foreign table.....
//title_id is a Unique key in both table..
//deleted is a magic Table where delete data is stored...
create trigger delcascadetrig
on titleauthor
for delete
as
delete delcascadetrig
from titles, deleted
where titles.title_id = deleted.title_id
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