摘要:
表一 App表二 Screenshot下面语句的意思: 根据表Screenshot里面的外键AppId=App.Id 把 ScreenshotUrl值赋给App 表的Urlupdate App set Url=(select Screenshot.ScreenshotUrl from Screenshot where AppId=App.Id and Screenshot.No=0) 阅读全文
posted @ 2010-04-13 19:25
Blue Sky ......
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