Custom aggregate functions

• Iulian -207023

  SSCertifiable

  Points: 7509

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  November 29, 2011 at 4:40 pm

  #263766

  Hello,

  I need an aggregate function that concatenate string values on a column.

  The msdn example here (the first one) does exactly what I need.

  My questions are:

  What is the order of the rows the strings concatenates?

  How can I make sure the order of the strings being concatenated is the one I need?

  for example I need the concatenated strings to be ordered by a date column

  Thank you,

  Iulian

• Evil Kraig F

  SSC Guru

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  November 29, 2011 at 4:56 pm

  #1414392

  You're going to want to use the FOR XML method, just without a delimited separator.

  Check out this article: http://www.sqlservercentral.com/articles/FOR+XML+PATH/70203/

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