Home Forums SQL Server 2008 T-SQL (SS2K8) t-sql key on a table RE: t-sql key on a table

  • January 6, 2014 at 10:17 pm

    #1677950

    Christian Graus (1/6/2014)

    Thanks - good to know.

    Just so you don't think that I'm making this up, here's the entry from Books Online under the title of "Creating and Modifying PRIMARY KEY Constraints ". I know I hate it when someone tells me something about SQL Server and can't actually back it up.

    The Database Engine automatically creates a unique index to enforce the uniqueness requirement of the PRIMARY KEY constraint. If a clustered index does not already exist on the table or a nonclustered index is not explicitly specified, a unique, clustered index is created to enforce the PRIMARY KEY constraint.

    --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.

    Helpful Links:
    How to post code problems
    How to Post Performance Problems
    Create a Tally Function (fnTally)