Change Character

  • I need to change Varchar column from 100 to 200 for one of the table

    Table has 80 Million records and allows Null values.

    I don't have test server to test, so i am curious how long it will take to Alter Column from 100 to 200 Varchar

  • Although I suspect it will actually be fairly rapid, there's no way to guesstimate such a thing.  Create a smaller test of a couple million rows and measure.  You should also measure what it may do to your log file.

     

    --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)

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