Home Forums SQLServerCentral.com Articles Requested PK v Unique Index RE: PK v Unique Index

  • February 20, 2015 at 6:18 pm

    #1779086

    Steve Jones - SSC Editor (2/20/2015)

    I user request to get an article, which would explain in details the differences between primary key and unique index, especially from disk i/o point of view, I think it will be of a massive help to many SQL Server Central readers.

    Are you sure you're not getting PKs and Unique indexes mixed up with Clustered and Non-Clustered Indexes here?

    --Jeff Moden

    RBAR is pronounced "ree-bar" and is a "Modenism" for Row-By-Agonizing-Row.
    First step towards the paradigm shift of writing Set Based code:
    ________Stop thinking about what you want to do to a ROW... think, instead, of what you want to do to a COLUMN.

    Change is inevitable... Change for the better is not.

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