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How to debug Lock wait timeout exceeded on MySQL?
...al Locking and Mutex Information.
Here is a sample from one of my clients:
mysql> show engine innodb status\G
*************************** 1. row ***************************
Type: InnoDB
Name:
Status:
=====================================
110514 19:44:14 INNODB MONITOR OUTPUT
=================...
MySQL: determine which database is selected?
After calling mysql_select_db to grab a database, is there any way to later output the name of the database that is currently selected? This seems very basic but I couldn't find anything on php.net or stackoverflow (all results are for "no database selected").
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MySQL error 2006: mysql server has gone away
...rver at my office to process some files and report the results to a remote MySQL server.
28 Answers
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Can\'t connect to local MySQL server through socket \'/tmp/mysql.sock\...
Can't connect to local MySQL server through socket '/tmp/mysql.sock'ln -s var lib mysql mysql.sock tmp mysql.sock 建个link即可，不解释。
ln -s /var/lib/mysql/mysql.sock /tmp/mysql.sock
建个link即可，不解释。MySQL mysql.sock
写出高质量代码的10个Tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
写出高质量代码的10个Tips很长一段时间以来，我都在关注如何提高代码质量，也为此做过一些尝试，我想这个话题可能大家会比较感兴趣，在这里分享一下我关于如何提高代...很长一段时间以来，我都在关注如何提高代码质量，...
How can I tell when a MySQL table was last updated?
..."last updated the xx/xx/200x" with this date being the last time a certain mySQL table has been updated.
15 Answers
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Insert current date in datetime format mySQL
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If you're looking to store the current time just use MYSQL's functions.
mysql_query("INSERT INTO `table` (`dateposted`) VALUES (now())");
If you need to use PHP to do it, the format it Y-m-d H:i:s so try
$date = date('Y-m-d H:i:s');
mysql_query("INSERT INTO `table` (`datepo...
如何建立一套适合自己的高胜算交易系统 - 更多技术 - 清泛网 - 专注C/C++及内核技术
如何建立一套适合自己的高胜算交易系统这个交易系统是非机械的，适合你自己个性的，有完善的交易思想、细致的市场分析和整体操作方案的，在风险市场的赢家都有自已的交易系统，因...这个交易系统是非机械的，适合你自...
select count(*) from table of mysql in php
I am able to get both the value and row of the mysql query result.
18 Answers
18
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游戏中的算法与计算思维 06：用难度与耗时形成游戏规则 · App Inventor 2 中文网
...算。匹配结束时停止刷新并冻结成绩，重新开局全部状态重置。
先预测，再运行
刷新回调晚了 7.3 秒，成绩会只增加一秒吗？
先记下自己的答案，运行起始工程与完成工程比较；答案见文末。
开始...