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Repair all tables in one go
...ing query to print REPAIR SQL statments for all tables inside a database:
select concat('REPAIR TABLE ', table_name, ';') from information_schema.tables
where table_schema='mydatabase';
After that copy all the queries and execute it on mydatabase.
Note: replace mydatabase with desired DB name
...
grant remote access of MySQL database from any IP address
...ERNAME & PASSWORD for remote access.
You can check final outcome by:
SELECT * from information_schema.user_privileges where grantee like "'USERNAME'%";
Finally, you may also need to run:
mysql> FLUSH PRIVILEGES;
Test Connection
From terminal/command-line:
mysql -h HOST -u USERNAME -p...
实战低成本服务器搭建千万级数据采集系统 - 更多技术 - 清泛网 - 专注C/C++...
...oncrawler上一篇文章《社会化海量数据采集框架搭建》提到如何搭建一个社会化采集系统架构，讲架构一般都比较虚，这一篇讲一下如何实战用低成本服务器...有这样一个采集系统的需求，达成指标： 需要采集30万关键词的数据 ...
MySQL show current connection info
...e are MYSQL functions you can use. Like this one that resolves the user:
SELECT USER();
This will return something like root@localhost so you get the host and the user.
To get the current database run this statement:
SELECT DATABASE();
Other useful functions can be found here: http://dev.mys...
淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...进行动静分离，这也是解决大流量系统的一个重要原则。如何给系统做动静分离的静态化改造我以前写过一篇《高访问量系统的静态化架构设计》详细介绍了淘宝商品系统的静态化设计思路，感兴趣的可以在《程序员》杂志上找...
MySQL dump by query
...
not mysqldump, but mysql cli...
mysql -e "select * from myTable" -u myuser -pxxxxxxxxx mydatabase
you can redirect it out to a file if you want :
mysql -e "select * from myTable" -u myuser -pxxxxxxxx mydatabase > mydumpfile.txt
Update:
Original post asked if...
Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?
...
You can check the currently running transactions with
SELECT * FROM `information_schema`.`innodb_trx` ORDER BY `trx_started`
Your transaction should be one of the first, because it's the oldest in the list. Now just take the value from trx_mysql_thread_id and send it the KILL ...
项目管理实践教程二、源代码控制【Source Control Using VisualSVN Server ...
...，没有任何内容在里面。我会在这个教程的第二部分说明如何迁入源代码。
下面，我们开始安全性设置，在左侧的Users上点击右键：
输入上面的信息，点击OK，我们就创建一个用户了。按照上面的过程，分别添加用户Develo...
Drop all tables whose names begin with a certain string
...n one in the database.
DECLARE @cmd varchar(4000)
DECLARE cmds CURSOR FOR
SELECT 'drop table [' + Table_Name + ']'
FROM INFORMATION_SCHEMA.TABLES
WHERE Table_Name LIKE 'prefix%'
OPEN cmds
WHILE 1 = 1
BEGIN
FETCH cmds INTO @cmd
IF @@fetch_status != 0 BREAK
EXEC(@cmd)
END
CLOSE cmds;
DEA...
How to order by with union in SQL?
Is it possible to order when the data is come from many select and union it together? Such as
8 Answers
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