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  1. #1
    Join Date
    Jun 2011
    Posts
    1

    Unanswered: SQL Unique Query

    Im not sure if this the right forum but:

    I have a data output with many rows. In order to group things with flags, I do this in excel using 2 formulas which *** a flag of 0 or 1 in 2 new columns.

    This takes a long long time as I have hundreds of thousands of rows and wondered of I could do it in sql?

    Its transact SQL and the formulas I use in excel are:

    =IF(SUMPRODUCT(($A$2:$A2=A2)*($B$2:$B2=B2)*($C$2:$ C2>=C2-1/24)*($C$2:$C2< C2+1/24))> 1,0,1)

    =IF(SUMPRODUCT(($A$2:$A2=A2)*($B$2:$B2=B2))>1,0,1)

    Any idea how I can do this in sql??

    The columns above do not relate to the actual columns I use, just an example.

  2. #2
    Join Date
    May 2005
    Location
    South Africa
    Posts
    1,365
    Provided Answers: 1
    Looks like you need something similar to a running total - I think best is not to do this in an sql query.

  3. #3
    Join Date
    Feb 2004
    Location
    In front of the computer
    Posts
    15,579
    Provided Answers: 54
    It does look like a running total, and if the version of Sybase server you are using provides Windowing Aggregate Functions, those will do exactly what you are trying to do.

    -PatP
    In theory, theory and practice are identical. In practice, theory and practice are unrelated.

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