SQLServer (多表左连接,指定操作某几行)
SELECT *
FROM 表1 LEFT JOIN 表2 ON 表1.关联字段=表2.关联字段 LEFT JOIN 表3 ON (表1/表2).关联字段=表3.关联字段 WHERE 条件
delete from [HYMSDT].[dbo].[T_Station] where Sta_Guid in (select top 8 Sta_Guid from [HYMSDT].[dbo].[T_Station] order by Sta_Guid desc)

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