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
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
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
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
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
The OnMapReplaced event is triggered whenever
theIMapControl2::Mapis replaced by another map, such as when
theIMapControl2::LoadMxFilemethod is used o...
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其他好文 时间：
2014-05-23 03:51:19
阅读次数：
261
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
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
In bash shell, when you use a dollar sign
followed by a variable name, shell expands the variable with its value. This
feature of shell is called para...
分类：
其他好文 时间：
2014-05-21 18:32:32
阅读次数：
332
When you subtract two variables of type TIMESTAMP, you get an INTERVAL DAY TO SECOND which includes a number of milliseconds and/or microseconds depending on the platform. If the database is running o...
分类：
其他好文 时间：
2014-05-21 15:36:38
阅读次数：
488
