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MySQL for Big Data 2 Jun 2011 | 12:45 pm

An excerpt from article on mysql for big data published in Dow Jones Venture Wire by Scott Denne. There is one possible solution to the problem that doesn't include companies having to buy new softwa...

Presenting "Real-Life Use Cases From Data Administration Hell" at LAMySQL 8 Feb 2011 | 03:12 pm

If you're in the Los Angeles area on Feb 15, come hear my talk at LAMySQL inspired by learnings from real-life experiences. In addition to hearing a very unique and interesting talk, you can win an Ap...

More mysql select null related news:

MySQL NULL gotcha; or, yes, Virginia, types do matter ender.com 29 Apr 2009 | 12:15 pm

If you spend a lot of time dealing with languages that are loosely typed and have scalars running wild, then like me, you may be prone to doing something like this: mysql> select NOW(); select GREATE...

MySQL “pretty printing” smaftoul.wordpress.com 9 Apr 2009 | 04:57 am

I just discovered an apparently wide spread tip for mysql: mysql> select 1, 2, 3, 4 ; +---+---+---+---+ | 1 | 2 | 3 | 4 | +---+---+---+---+ | 1 | 2 | 3 | 4 | +---+---+---+---+ 1 row in set (0.0...

Linux下mysql数据库远程访问设置方法 wabseo.com 15 May 2012 | 08:12 pm

1、修改localhost 更改 “mysql” 数据库里的 “user” 表里的 “host” 项,从”localhost”改成”%” mysql>use mysql; mysql>update user set host = ‘%’ where user = ‘root’; mysql>select host, user from user; mysql>FLUSH PRIVILEG...

MySQL Select Last n Records Without Changing The Order enghiong.com 17 Apr 2012 | 06:42 am

Let’s say I am going to select the last 10 records of a table. The main consideration would be using the query: SELECT recordId FROM myTable ORDER BY recordId DESC LIMIT 10 The above query would ...

MySQL Bar Chart from the Command Line onlinemarketer.com 6 May 2009 | 04:57 am

MySQL Command Line Bar Chart I just ran accross this really cool method of generating a bar chart from the mysql command line using the mysql repeat command: mysql> select date_format( create_time, ...

MYSQL的profile使用 9enjoy.com 24 Apr 2012 | 06:08 pm

MYSQL的profiling功能要在Mysql版本5.0.37以上才能使用。 开启profiling: set profiling=1; 查看是否设置生效: select @@profiling; 默认是0,设置成功是1 运行SQL语句: mysql> select * FROM hx_line WHERE id = '1455023'; 查看profiles mys...

Limited SELECT count(*) mysqldiary.com 14 May 2010 | 12:52 pm

A SELECT statement with COUNT returns the number of rows retrieved by the SELECT statement (see mysql select count). For performance reasons, the desired result is to limit that count. Including a LIM...

MYSQL的profile使用 9enjoy.com 24 Apr 2012 | 02:08 pm

MYSQL的profiling功能要在Mysql版本5.0.37以上才能使用。 开启profiling: set profiling=1; 查看是否设置生效: select @@profiling; 默认是0,设置成功是1 运行SQL语句: mysql> select * FROM hx_line WHERE id = '1455023'; 查看profiles mys...

MySQL Select Last n Records Without Changing The Order enghiong.com 17 Apr 2012 | 02:42 am

Let's say I am going to select the last 10 records of a table. The main consideration would be using the query: SELECT recordId FROM myTable ORDER BY recordId DESC LIMIT 10 The above query would selec...

Trắc nghiệm kiến thức ngôn ngữ PERL baomathethong.blogspot.com 8 Aug 2012 | 08:24 pm

Trong bài này, chúng ta sẽ trắc nghiệm một số kiến thức cơ bản về ngôn ngữ PERL. Câu 1. When you're pattern matching, you describe the pattern using: 1. A string in double quotes 2. A MySQL select s...

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