EBK DATABASE SYSTEM CONCEPTS
7th Edition
ISBN: 9781260049268
Author: SILBERSCHATZ
Publisher: MCG COURSE
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Chapter 5, Problem 8PE
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SQL trigger:
create trigger check-delete-trigger after delete on account
referencing old row as orow
for each row
delete from depositor
where depositor.customer name not in
(select customer name from depositor
where account number <> orow...
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EBK DATABASE SYSTEM CONCEPTS
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