Help with a trigger - calculated column

Posted on 2013-10-22
Last Modified: 2013-10-22
I have a table with an end date column and a  long value that is a status.  I want to set the status to a specific value whenever the current date is great than the end date.  I know how to create a calculated column, but that requires a value in a column to change.  How do I trigger a value change based on the current date?
Question by:HLRosenberger
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LVL 66

Expert Comment

by:Jim Horn
ID: 39590925
>but that requires a value in a column to change.
Explain why this matters, as it's not clear why a calculated column can not meet your requirements.

Author Comment

ID: 39590988
I could be all wet.   How/when does the comparision of the end date to current date take place?  I mean what triggers that?
LVL 66

Accepted Solution

Jim Horn earned 500 total points
ID: 39591027
A trigger will fire when row(s) are inserted-updated-deleted, and gives the developer full control over what happens for the set of rows that are inserted-updated-deleted, and not for every row.

A calculated column is calculated on select, so in effect every time you access the column.

Author Comment

ID: 39592298
Ah, so calculated should work then,   Thanks.

Author Closing Comment

ID: 39592299

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