https://blog.youkuaiyun.com/lihui_830501zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/lihui_830501/article/details/49530573https://blog.youkuaiyun.com/lihui_830501/article/details/49530573lihui_830501Sat, 31 Oct 2015 10:04:50 +08000 BEGIN DECLARE @var varchar(20); PRINT @var SET @var = CASE WHEN @i=2 THEN 'Test1' ELSE 'Test2' END SET @i-=1; END 我们期待@var 永远为NULL，]]>https://blog.youkuaiyun.com/lihui_830501/article/details/37612157https://blog.youkuaiyun.com/lihui_830501/article/details/37612157lihui_830501Sat, 23 Aug 2014 13:15:17 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/37596051https://blog.youkuaiyun.com/lihui_830501/article/details/37596051lihui_830501Wed, 09 Jul 2014 13:01:14 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20202881https://blog.youkuaiyun.com/lihui_830501/article/details/20202881lihui_830501Tue, 08 Jul 2014 00:40:22 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20202543https://blog.youkuaiyun.com/lihui_830501/article/details/20202543lihui_830501Sat, 28 Jun 2014 00:21:59 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/17291953https://blog.youkuaiyun.com/lihui_830501/article/details/17291953lihui_830501Fri, 27 Jun 2014 01:58:02 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/26760765https://blog.youkuaiyun.com/lihui_830501/article/details/26760765lihui_830501Sat, 24 May 2014 00:07:48 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20520981https://blog.youkuaiyun.com/lihui_830501/article/details/20520981lihui_830501Wed, 21 May 2014 00:55:05 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/21507495https://blog.youkuaiyun.com/lihui_830501/article/details/21507495lihui_830501Wed, 14 May 2014 00:48:32 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20777603https://blog.youkuaiyun.com/lihui_830501/article/details/20777603lihui_830501Fri, 09 May 2014 00:05:19 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20281435https://blog.youkuaiyun.com/lihui_830501/article/details/20281435lihui_830501Wed, 23 Apr 2014 00:29:51 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20266183https://blog.youkuaiyun.com/lihui_830501/article/details/20266183lihui_830501Sun, 20 Apr 2014 00:28:23 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20266097https://blog.youkuaiyun.com/lihui_830501/article/details/20266097lihui_830501Wed, 09 Apr 2014 00:35:11 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/22905361https://blog.youkuaiyun.com/lihui_830501/article/details/22905361lihui_830501Fri, 04 Apr 2014 02:05:10 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20266019https://blog.youkuaiyun.com/lihui_830501/article/details/20266019lihui_830501Thu, 03 Apr 2014 23:12:18 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/22770449https://blog.youkuaiyun.com/lihui_830501/article/details/22770449lihui_830501Wed, 02 Apr 2014 03:51:54 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20265249https://blog.youkuaiyun.com/lihui_830501/article/details/20265249lihui_830501Wed, 26 Mar 2014 00:59:07 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20265039https://blog.youkuaiyun.com/lihui_830501/article/details/20265039lihui_830501Tue, 25 Mar 2014 00:42:56 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20264793https://blog.youkuaiyun.com/lihui_830501/article/details/20264793lihui_830501Sat, 22 Mar 2014 00:19:43 +0800https://blog.youkuaiyun.com/lihui_830501/article/details/20264735https://blog.youkuaiyun.com/lihui_830501/article/details/20264735lihui_830501Tue, 18 Mar 2014 02:30:04 +0800