摘要： 一、Union用法：SQL Statement 1UNION ALLSQL Statement 2（1）Select * from ((Select Top 10 n.* ,m.Menu_Name from News as n inner join Menu as m On n.Menu_Pk=m.Menu_Pk where n.Menu_Pk='21' )union all(Select Top 10 n.* ,m.Menu_Name from News as n inner join Menu as m On n.Menu_Pk=m.Menu_Pk where n.Menu 阅读全文