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Row Version


Row Version

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Zohaib Anwar
Zohaib Anwar
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I would like to try and get the Rowversion change snuck into the schedule sometime soon.

An overview of this plan:

If we use the following command we can add a rowversion column to every table in both our main and settings databases.
EXEC sp_MSforeachtable '
if not exists (select * from sys.columns
where object_id = object_id(''?'')
and name = ''RowVersion'')
begin
ALTER TABLE ? ADD [RowVersion] Rowversion NOT NULL;
end';

With the rowversion column in place we can quickly check that data we are about to update is not stale, without having to read entire row into memory.
This is targeted more at disconnected/web service application contexts.
Entity Framework can be configured to take advantage of the column as well.

The plan was to add a one-time entry into the each of the update scripts to initialize this on all of the tables. And then add code to always run this command after main data or setting data updates are triggered (actually do something).


Any tips how can I implement it??
Sean Lange
Sean Lange
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Is what you have not working? Are you getting an error message?

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Zohaib Anwar
Zohaib Anwar
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I have not done the changes in Database so far but I was looking for any better option
Sean Lange
Sean Lange
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sumair.haider (10/23/2013)
I have not done the changes in Database so far but I was looking for any better option


What you posted worked fine on a dev database I have. If you want to add this column to every single table in the database this is pretty much how I would do it.

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

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Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Understanding and Using APPLY (Part 1)
Understanding and Using APPLY (Part 2)
GilaMonster
GilaMonster
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The only thing I would suggest is give the column a better name. You shouldn't use reserved words or datatype names as column names

Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass


Sean Lange
Sean Lange
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GilaMonster (10/23/2013)
The only thing I would suggest is give the column a better name. You shouldn't use reserved words or datatype names as column names


+100000000000

_______________________________________________________________

Need help? Help us help you.

Read the article at http://www.sqlservercentral.com/articles/Best+Practices/61537/ for best practices on asking questions.

Need to split a string? Try Jeff Modens splitter.

Cross Tabs and Pivots, Part 1 – Converting Rows to Columns
Cross Tabs and Pivots, Part 2 - Dynamic Cross Tabs
Understanding and Using APPLY (Part 1)
Understanding and Using APPLY (Part 2)
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