大约有 19,000 项符合查询结果(耗时:0.0270秒) [XML]

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Get difference between two lists

... 3:3} >>> pprint(DeepDiff(t1, t2), indent=2) { 'type_changes': { 'root[2]': { 'newtype': <class 'str'>, 'newvalue': '2', 'oldtype': <class 'int'>, 'oldvalue': 2}}} Value of an it...
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那些我印象深刻的建议和教诲 - 杂谈 - 清泛网 - 专注C/C++及内核技术

...负有心人”和“蠢”之间可能连窗户纸都没有,只看个人如何面对了。 多用Google吧 我工作的第一天,项目经理把我叫去说:给你们讲讲JUnit, SVN,Ant, JBuilder的用法,明天开始用。这四样东西我以前都没有接触过,第一反应就是...
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MySQL - ORDER BY values within IN()

... @Vladimir - yes, it is MySQL-specific. The question has the mysql tag. – Ayman Hourieh Jun 6 '09 at 1:10 ...
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Detect if Visual C++ Redistributable for Visual Studio 2012 is installed

...been finalized, yet. As I'm guessing the upper-most keys of: [HKEY_CLASSES_ROOT\Installer\Dependencies\,,amd64,14.0,bundle] and [HKEY_CLASSES_ROOT\Installer\Dependencies\,,x86,14.0,bundle] are subject to change, or at least have different nested GUIDs, I'm going to use list the key that ends with a...
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How do I find which transaction is causing a “Waiting for table metadata lock” state?

...ransactions waiting for locks: SELECT TRX_ID, TRX_REQUESTED_LOCK_ID, TRX_MYSQL_THREAD_ID, TRX_QUERY FROM INNODB_TRX WHERE TRX_STATE = 'LOCK WAIT'; Reference - MySQL Troubleshooting: What To Do When Queries Don't Work, Chapter 6 - Page 96. ...
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Is there any connection string parser in C#?

...on string builders from various providers like SqlConnectionStringBuilder, MySqlConnectionStringBuilder, SQLiteConnectionStringBuilder etc (unfortunately there is no public interface from MS this time). Otherwise you have DbProviderFactory.CreateConnectionStringBuilder which will give you an alterna...
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ALTER TABLE without locking the table?

When doing an ALTER TABLE statement in MySQL, the whole table is read-locked (allowing concurrent reads, but prohibiting concurrent writes) for the duration of the statement. If it's a big table, INSERT or UPDATE statements could be blocked for a looooong time. Is there a way to do a "hot alter", li...
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Escaping ampersand character in SQL string

... Note that & doesn't need to be escaped in MySQL. Also MySQL doesn't have the function CHR(). – asmaier Jun 18 at 11:24 add a comment ...
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mysql query order by multiple items

..._activity ASC so sort direction for each column, default sort direction in mysql (with default configuration) is ASC. – ZurabWeb Jan 30 '14 at 20:29 add a comment ...
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MySql - Way to update portion of a string?

I'm looking for a way to update just a portion of a string via MySQL query. 4 Answers ...