摘要： 阻止插入一条记录时重复插入代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--insertinto[Catchpage].[dbo].[gdlmo_yq]([title],[PageUrl])select'aaaa','http://10.4.19.252'wherenotexists(select*from[Catchpage].[dbo].[gdlmo_yq]bwhereb.[PageUrl]='http://10.4.19.252') 阅读全文