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trigger consists of a group of sql statements which can be used to restrict to insert or update or delete data from a table.
the syntax is
trigger triggername
on table name
for insert or delete or updata
as
sql statements.
when ever an trigger is raised it creates 2 tables internally they are clled magic tables
the syntax is
trigger triggername
on table name
for insert or delete or updata
as
sql statements.
when ever an trigger is raised it creates 2 tables internally they are clled magic tables
1
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