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华为公司的新产品研发流程管理 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...化的条件反射。这样的产品一般会有太多的甚至是不利的性能，因而不能处于有利的竞争地位。产品的定义也是随机的，不能成为一个有机战略的一部分。其结果是，各个产品相互拼凑，不能形成一条一体化的产品线。
产...
How to debug Lock wait timeout exceeded on MySQL?
... 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
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Cloning a MySQL database on the same MySql instance
...ript which copies my current database sitedb1 to sitedb2 on the same mysql database instance. I know I can dump the sitedb1 to a sql script:
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现实版《道士下山》：道长老梁的四面人生 - 轻松一刻 - 清泛网 - 专注C/C++...
...个真实自在的自己，开心快乐，坦然面对生活。”
即便包括父亲在内的家人，并不理解他选择出家，甚至还有异样的眼光，但“他知道我不是在做坏事害人，他就满意了”。
其实，老梁还有个目标远大的“理想”，希望有一...
Binary Data in MySQL [closed]
How do I store binary data in MySQL ?
9 Answers
9
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How the single threaded non blocking IO model works in Node.js
... behavior) most functions that you would use will have callbacks.
Edit
The SQL query is taken from mysql library. It implements callback style as well as event emitter to queue SQL requests. It does not execute them asynchronously, that is done by the internal libuv threads that provide the abstract...
ASP.NET Identity reset password
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Is there any way to do this directly in SQL? I'd love to hand my DBA a sproc to call when needed instead of an executable.
– Mark Richman
Feb 24 '15 at 19:19
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MySQL: Fastest way to count number of rows
Which way to count a number of rows should be faster in MySQL?
12 Answers
12
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Rails 3: Get Random Record
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Thing.first(:order => "RANDOM()") # For MySQL :order => "RAND()", - thanx, @DanSingerman
# Rails 3
Thing.order("RANDOM()").first
or
Thing.first(:offset => rand(Thing.count))
# Rails 3
Thing.offset(rand(Thing.count)).first
Actually, in Rails 3 all examples ...
How to allow remote connection to mysql
I have installed MySQL Community Edition 5.5 on my local machine and I want to allow remote connections so that I can connect from external source.
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