OL SDK:http://help.infragistics.com/ 资料参考:http://blog.csdn.net/andy_212/article/details/4019895 http://blog.tianya.cn/blogger/post_show.asp?BlogID=1862414&PostID=17354963 -------------------------------------------------------------------------------
1.去重 select * from daydata where wtid||rectime in (select wtid||rectime from daydata group by wtid||rectime having count(wtid||rectime) > 1) and ctid not in (select min(ctid) from daydata group by wtid||rectime having count(wtid||rectime)>1) (适