Post reply

Change Character

  • July 22, 2019 at 3:16 pm

    #3665113

    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

  • July 22, 2019 at 3:21 pm

    #3665114

    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)

Viewing 2 posts - 1 through 1 (of 1 total)

You must be logged in to reply to this topic. Login to reply