DELETE FROM TB_Test WHERE ID NOT IN
(
SELECT MIN(ID ) AS MinID FROM dbo.TB_Test AS tt GROUP BY CustomInfo
)
留第一条还是最后一条看着办，sql2005中ID能用行号(RowID)了
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DELETE FROM TB_Test WHERE ID NOT IN
(
SELECT MIN(ID ) AS MinID FROM dbo.TB_Test AS tt GROUP BY CustomInfo
)
留第一条还是最后一条看着办，sql2005中ID能用行号(RowID)了
相关文章：