upgrade

  • hi,

    we have two way to upgrade sql server.

    1.sql server upgrade guide

    2.instal a new instance with higher version.backp&restore to the new instance.

    which way is better?and what is the difference.

    thanks.

  • owen_zeng (7/29/2015)


    hi,

    we have two way to upgrade sql server.

    1.sql server upgrade guide

    2.instal a new instance with higher version.backp&restore to the new instance.

    which way is better?and what is the difference.

    thanks.

    Situationally, either one works. For the major upgrades, not a service pack or cumulative upgrade, I prefer the second approach. The reason is, you can immediately undo it if there's a problem. Whereas, with the first approach, once you start the process, you're committed to getting your upgrade done successfully. That added safety valve of the second instance counts for a lot.

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • Thanks a lot!I also prefer the second one .

    when should i use the first one?

  • All the minor upgrades. And, when you don't have a choice. It's just not as safe as having a second server sitting right there.

    "The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood"
    - Theodore Roosevelt

    Author of:
    SQL Server Execution Plans
    SQL Server Query Performance Tuning

  • Cases where it's acceptable to reinstall the server if the upgrade fails.

    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

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