大约有 15,000 项符合查询结果（耗时：0.0289秒） [XML]
Is the C# static constructor thread safe?
In other words, is this Singleton implementation thread safe:
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Better techniques for trimming leading zeros in SQL Server?
I've been using this for some time:
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...一篇正则表达式教程，部分翻译自codeproject的The 30 Minute Regex Tutorial。由于评论里有过长的URL,所以本页排版比较...
来园子之前写的一篇正则表达式教程，部分翻译自codeproject的The 30 Minute Regex Tutorial。
由于评论里有过...
NerdTree - Reveal file in tree
Is there a shortcut which reveal the current file in the NerdTree directory panel.
5 Answers
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SQL Server: Examples of PIVOTing String data
Trying to find some simple SQL Server PIVOT examples. Most of the examples that I have found involve counting or summing up numbers. I just want to pivot some string data. For example, I have a query returning the following.
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Is there a way to dump a stack trace without throwing an exception in java?
I am thinking of creating a debug tool for my Java application.
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When should I use a table variable vs temporary table in sql server?
I'm learning more details in table variable. It says that temp tables are always on disk, and table variables are in memory, that is to say, the performance of table variable is better than temp table because table variable uses less IO operations than temp table.
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Get value from JToken that may not exist (best practices)
What's the best practice for retrieving JSON values that may not even exist in C# using Json.NET ?
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Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
I have just started to look at the Scala collections library re-implementation which is coming in the imminent 2.8 release. Those familiar with the library from 2.7 will notice that the library, from a usage perspective, has changed little. For example...
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How do I escape a percentage sign in T-SQL?
This question also has the answer , but it mentions DB2 specifically.
4 Answers
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