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搜索关键字:sql语句-case when then    ( 7150个结果
cas
CAS,当oldVal与expected相同时,将oldVal更新为newVal,原子操作ABA problem:when a location is read twice, has the same value for both reads, and "value is same“ is used...
分类:其他好文   时间:2014-05-26 16:06:53    阅读次数:217
python模块与包加载机制
模块的搜索路径:When a module namedspamis imported, the interpreter searches for a file namedspam.pyin the current directory, and then in the list of director...
分类:编程语言   时间:2014-05-26 15:09:11    阅读次数:367
Eclipse “Invalid Project Description” when creating new project from existing source
1) File>Import>General>Existing Project into Workspace2) File>Import>Android>Existing Code into Workspace
分类:系统相关   时间:2014-05-26 10:51:33    阅读次数:280
Android “swipe” vs “fling”
onFling will get executed when a user makes a "fling" motion, and said motion has a velocity with it to determine the type of fling it was. However,.....
分类:移动开发   时间:2014-05-26 06:23:31    阅读次数:443
uva 103 Stacking Boxes
Background Some concepts in Mathematics and Computer Science are simple in one or two dimensions but become more complex when extended to arbitrary dimensions. Consider solving differential equations...
分类:其他好文   时间:2014-05-26 04:31:34    阅读次数:234
2014辽宁省赛 Traveling
问题 K: Traveling 时间限制: 1 Sec  内存限制: 128 MB 提交: 13  解决: 4 [提交][状态][论坛] 题目描述 SH likes traveling around the world. When he arrives at a city, he will ask the staff about the number of cities that...
分类:其他好文   时间:2014-05-25 01:44:43    阅读次数:391
solr DIH 数据配置文件的理解
Thequerygives the data needed to populate fields of the Solr document in full-importThedeltaImportQuerygives the data needed to populate fields when r...
分类:其他好文   时间:2014-05-24 08:02:49    阅读次数:286
AE开发关于OnMapReplaced方法的使用原理
The OnMapReplaced event is triggered whenever theIMapControl2::Mapis replaced by another map, such as when theIMapControl2::LoadMxFilemethod is used o...
分类:其他好文   时间:2014-05-23 03:51:19    阅读次数:261
数据库一列多行转一行多列
如题: select max(case when name='1' then [temp] else null end) as temp1 , max(case when name='2' then [temp] else null end) as temp2,  max(case when name='3' then [temp] else null end) as...
分类:数据库   时间:2014-05-23 02:37:04    阅读次数:734
Oracle Case When的妙用
Case when 的用法--简单Case函数简单CASE表达式,使用表达式确定返回值.语法: CASE search_expression WHEN expression1 THEN result1 WHEN expression2 THEN result2 ... WHEN expre...
分类:数据库   时间:2014-05-22 14:56:26    阅读次数:336
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