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Editorial Team
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Asked: 2026-06-02T22:51:52+00:00

I need to delete all duplicate rows except the first occurrence of similar rows

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I need to delete all duplicate rows except the first occurrence of similar rows from a Table Log having the same customer_id and deactivation_date. How do I achieve that with minimum number of sql statements.

I Am using MS SQL Server 2008 express edition.

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1 Answer

  1. Editorial Team

    Something like: 

    DELETE FROM Log WHERE LogId NOT IN 
 (SELECT Min(LogId) FROM Log GROUP BY customer_id, deactivation_date)
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