• rafa.aborges (4/5/2010)


    is there any extra cost? Something that I should be aware of?

    * Increases resource usage when modifying data since row versions are maintained in tempDB.

    * Update and Delete transaction will use more resource since it has to create a snapshot

    in the tempDB. This could cause higher IO, CPU and Memory usage.

    * TempDB must have enough space to handle all the additional requirements.

    * If there are long version chains then Data Read performance will be affected.

    -------Bhuvnesh----------
    I work only to learn Sql Server...though my company pays me for getting their stuff done;-)