VB中队Access数据库表的连接操作

三表连接

SELECT a.ZDID,a.ZDname,a.ZDIP,a.Remark,b.eventtime,c.checkTime from (ZDList as a
left join ZDEvents as b on a.zdid=b.zdid )
left join ZDcheckchangerecord_old as c on a.zdid=c.zdid