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Posted By

samwa on 03/23/11


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sql delete


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samwa


Delete duplicate rows from a table

 / Published in: SQL
 

URL: http://www.cryer.co.uk/brian/sql/sql_delete_duplicates.htm

this will delete where uniqueField is greater

Expand | Embed | Plain Text 
  1. DELETE T1
  2. FROM MyTable T1, MyTable T2
  3. WHERE T1.dupField = T2.dupField
  4. AND T1.uniqueField > T2.uniqueField

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