MSSQL

delete top(1) from Tb_PaintOut where PaintNumber = (select top (1)  PaintNumber from Tb_PaintOut order by PaintOutTime desc)

Tb_PaintOut：表明

PaintNumber：字段名

PaintOutTime：时间类型字段

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原文地址：https://www.cnblogs.com/KTblog/p/4595284.html