delete dublicate rows sql

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Christopher
07 Apr 2018
1WITH CTE AS(
2   SELECT [col1], [col2], [col3], [col4], [col5], [col6], [col7],
3       RN = ROW_NUMBER()OVER(PARTITION BY col1 ORDER BY col1)
4   FROM dbo.Table1
5)
6DELETE FROM CTE WHERE RN > 1
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