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)