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