大约有 48,000 项符合查询结果(耗时:0.0349秒) [XML]

https://stackoverflow.com/ques... 

How do I obtain a Query Execution Plan in SQL Server?

... AND ObjectName not in ( 'StopCapture', 'fn_trace_getinfo' ) GROUP BY CAST(TextData AS VARCHAR(MAX)), ObjectID, ObjectName, EventSequence) SELECT ObjectName, SUM(EstimatedTotalSubtreeCost) AS EstimatedTotalSubtreeCost FRO...
https://stackoverflow.com/ques... 

How to use Regular Expressions (Regex) in Microsoft Excel both in-cell and loops

...or c E.g. [a-z] matches any single lower case letter of the alphabet. () Groups different matches for return purposes. See examples below. {} Multiplier for repeated copies of pattern defined before it. E.g. [a]{2} matches two consecutive lower case letter a: aa E.g. [a]{1,3} matches at least ...
https://stackoverflow.com/ques... 

Why are side-effects modeled as monads in Haskell?

...ffect as just "delete file") At this point any mathematician is thinking "Group!" But groups have inverses, and there's no way to invert a side effect in general; "delete file" is irreversible. So the structure we have left is that of a monoid, which means our side-effecting functions should be mon...
https://stackoverflow.com/ques... 

MVC Razor view nested foreach's model

... just like any other function (which is why you can use delegates, method groups, and lambdas more or less interchangeably, because they are just code references.) However, when the compiler sees that the type is an Expression<>, it doesn't immediately compile the lambda down to MSIL, instea...
https://www.tsingfun.com/it/tech/1645.html 

实战Nginx与PHP(FastCGI)的安装、配置与优化 - 更多技术 - 清泛网 - 专注...

...HP错误信息。 <value name="display_errors">0</value> 标签user和group用于设置运行FastCGI进程的用户和用户组。需要注意的是,这里指定的用户和用户组要和Nginx配置文件中指定的用户和用户组一致。 <value name="user">nobody</value> <value name...
https://www.tsingfun.com/it/tech/743.html 

Linux的诞生和发展 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...作系统上移植运行。它是在1980 年早期一个UNIX 用户组(usr/group)的早期工作的基础上取得的。该UNIX 用户组原来试图将AT&T 的系统V 和Berkeley CSRG的BSD 系统的调用接口之间的区别重新调和集成,从而于1984 年产生了/usr/group 标准。1985 ...
https://stackoverflow.com/ques... 

Why in Java 8 split sometimes removes empty strings at start of result array?

...?!\A) at the end of the regex and wrap the original regex in non-capturing group (?:...) (if necessary). If your regex can't match zero-length string, you don't need to do anything. If you don't know whether the regex can match zero-length string or not, do both the actions in step 1. (?!\A) check...
https://stackoverflow.com/ques... 

What is the most efficient/elegant way to parse a flat table into a tree?

...ncestor_id = 1 ORDER BY f.name; Re comment from @Nate: SELECT f.name, GROUP_CONCAT(b.ancestor_id order by b.path_length desc) AS breadcrumbs FROM FlatTable f JOIN ClosureTable a ON (f.id = a.descendant_id) JOIN ClosureTable b ON (b.descendant_id = a.descendant_id) WHERE a.ancestor_id = 1 GR...
https://stackoverflow.com/ques... 

PHP Function Comments

...nother Author &lt;another@example.com&gt; * @copyright 1997-2005 The PHP Group * @license http://www.php.net/license/3_01.txt PHP License 3.01 * @version SVN: $Id$ * @link http://pear.php.net/package/PackageName * @see NetOther, Net_Sample::Net_Sample() * @since File ...
https://stackoverflow.com/ques... 

What does 'COLLATE SQL_Latin1_General_CP1_CI_AS' do?

... - 127, and "ASCII Extended" is 8-bit with character values 0 - 255). This group is the same across cultures. The Code Page is the "extended" part of Extended ASCII, and controls which characters are used for values 128 - 255. This group varies between each culture. Latin1 does not mean "ASCII" sinc...