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7.6

Mystery update to a column - how to trace

Asked by mooriginal in MS SQL Server, SQL Query Syntax

We have a problem with a field in a table that during the day in the prodcution environment is being updated with a null.
Where it should not have a null in it.

We can fix the problem with an update statement to alter to value in this column
but we run a select again to check any new changes - immediately there will be newly records that now have this null value in said field.

this doesnt affect all the records
we are at a loss to understand what process is doing this almost like a system procedure its so instantaneous.
We have switched of other application services that connect to the database to try and track it down.

Ive tried sql profiler but doesnt seem ideal as id like to point to a specific column to capture when its changed - maybe im missing something??

The question is
is there any way in sql server, sql syntax, profiler or 3rd party free app that would monitor a change to the field and capture whats doing it.
I even thought of a trigger on update somehow to do this ..

Any suggestions welcome but a working solution be it a program or bit of sql etc would be wanted if possible

thanks

Mo
[+][-]10/22/09 08:02 AM, ID: 25635041Expert Comment

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[+][-]10/22/09 08:56 AM, ID: 25635680Author Comment

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[+][-]10/22/09 09:35 AM, ID: 25636116Expert Comment

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[+][-]10/22/09 12:46 PM, ID: 25638195Accepted Solution

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About this solution

Zones: MS SQL Server, SQL Query Syntax
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Solution Provided By: kosturdur
Participating Experts: 2
Solution Grade: B
 
[+][-]10/23/09 02:28 AM, ID: 25642615Author Comment

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