Issue regarding update trigger in SQL Server -


i creating trigger after update on table.

the table contains c1, c2, c3, c4 columns , these columns c1, c2, c3, c4 independent of each other

trigger supposed "if update happens on c4 column.. trigger should invoked , values in c1 column should retrieved , modified"

how can handle scenario?

thanks in advance

try this. update kind of tricky little feature provides quick access asking for.

update ut     set         ut.c1 = case when update(c4) i.c4 else ut.c1 end     underlyingtable ut     inner join inserted on (ut.primarykey = i.primarykey)

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