Home Forums SQL Server 2012 SQL Server 2012 - T-SQL Ranking using 2 columns in T-SQL 2012 RE: Ranking using 2 columns in T-SQL 2012

  • May 27, 2014 at 9:24 am

    #1716730

    chrismic999 (5/27/2014)

    I have a table where basically I want to identify the first Invoice placed by an account.

    In the file I have 2 columns AccountName and Invoice_Date which I order by and then want to update a Rank_Order Column to state the 1st entry and then extract this for something else. basically I want to know when the company placed its very first order !!

    Here's a sample of the data I would like to get out

    Can someone help me with the SQL - This is pretty urgent too !!! Thanks

    AccountNameINVOICE_DATERank Order

    A01/08/20131

    A01/09/20132

    A01/10/20133

    B01/08/20131

    B01/08/20131

    B03/01/20142

    B01/02/20143

    B03/02/20144

    C01/10/20121

    C04/10/20133

    C10/04/20132

    Using ROW_NUMBER with PARTITION is how I would do this.

    Since you didn't provide ddl this example is untested.

    ROW_NUMBER() OVER(PARTITION BY AccountName Order by INVOICE_DATE) as RankOrder

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