Finding duplicate values in very large table. Select Row_number() over too slow

• Jeff Moden

  SSC Guru

  Points: 1004436

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  February 25, 2011 at 5:08 pm

  #1291845

  Indianrock (2/23/2011)

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  It will be up to the developers to decide if they're going to revise anything. Unless Systems decides to "insist" I've done a lot of googling on row_count and have yet to see anyone else using it with a cross join on a huge table with a copy of itself.

  Agreed... and to be sure, I see no reason for a Cross Join in this at all.

  --Jeff Moden

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  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.
  

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