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Derive column

  • August 3, 2012 at 10:43 am

    #261991

    I have a column " CID" which has values like this:

    CID :

    150569-Missing

    120567-HEALTH

    R60318-Missing

    5403-HEALTH

    40475-HEALTH

    003182173-health

    need to get only the numeric value ( that is digits before '-')

    example '150569-Missing' need only 150569

    cannot use function as I need this column on join.

    Can anyone help me with this??

  • August 3, 2012 at 10:59 am

    #1521528

    komal145 (8/3/2012)

    I have a column " CID" which has values like this:

    CID :

    150569-Missing

    120567-HEALTH

    R60318-Missing

    5403-HEALTH

    40475-HEALTH

    003182173-health

    need to get only the numeric value ( that is digits before '-')

    example '150569-Missing' need only 150569

    cannot use function as I need this column on join.

    Can anyone help me with this??

    Do you want something like:

    SELECT LEFT(CID, CHARINDEX('-', CID)-1) AS BeforeDash

    Now that won't be sargable, which may have been the intent of your original question.

    Rob

  • August 3, 2012 at 11:09 am

    #1521534

    also watch for those fields that are missing the dash:

    SELECT

    CASE

    WHEN CHARINDEX('-', CID) >= 0

    THEN LEFT(CID, CHARINDEX('-', CID) - 1)

    ELSE CID

    END AS BeforeDash

    Lowell

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  • August 3, 2012 at 11:59 am

    #1521563

    Just to add to the solutions, if at all possible split that into two columns. It appears you have two pieces of information in a single column. This type of thing will cause you nothing but pain in the long run. A column should hold a single piece of information.

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  • August 3, 2012 at 12:18 pm

    #1521580

    tHANK YOU

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