MySQL

  Mysqldump is an effective tool to backup MySQL database. it creates *. SQL file with DROP table, CREATE table and INSERT into SQL-statements of the source database. to restore the database, execute *. SQL file on destination database. for MyISAM,

A root permission error occurs when the MySQL GRANT command is executed. When the MySQL node executes the GRANT command to authorize the SPIDER server, the following error occurs:Reference mysql> grant all on *. * TO 'spider '@ 'spiderdb' identified

Mysql installation error: mysql file/usr/share/mysql/czech/errmsg. sys install of MySQL-serve problems install mysql rpm-ivh MySQL-server-5.5.25-1.linux2.6.x86_64.rpm error: mysql file/usr/share/mysql/czech/errmsg. sys from install of MySQL-serve ...

MySQL study note _ Summary of MySQL character type VARCHAR length I. VARCHAR storage and row length restrictions1. in VARCHAR (N), N refers to the length of characters. The VARCHAR type supports a maximum of 65535 characters and 65535 bytes, but

MySQL slow query analysis is essential for optimizing database slow query statements when we perform systematic optimization, especially for e-commerce-type severe MYSQL applications. Let's take a look at how to analyze MYSQL slow queries. 1. Enable

Thoroughly uninstall MySQL 1. Delete the programs added to the control panel. 2. delete my files in the MySQL folder. INI file. If the backup is good, you can directly delete all the folders. 3. Start-> Run-> regedit. Check the Registry to delete

Install 2 mysql-5.5.23-win32.zip files on Windows XPI. File preparation: on the official website http://dev.mysql.com/downloads/download the installation package mysql-5.5.23-win32.zip www.2cto.com unzip the mysql-5.5.23-win32.zip TO THE mysql-5.5.23

Select... comparison environment of for update lock behavior between mysql and oracle: [SQL] mysql> show variables like '% storage_engine % '; + ---------------- + -------- + | Variable_name | Value | + ------------------ + -------- + |

Starting mysql at MySQL startup .. manager of pid-file quit without updating prompts that the problem is caused by using service mysql start or/etc/init. d/mysql start: when mysql is started, sometimes www.2cto.com cannot be started, and only

In windows, run www.2cto.com to reset the MySql password in Windows. 2. Open the DOS window and go to the mysql \ bin directory. 3. Enter mysqld -- skip-grant-tables and press Enter. If no prompt is displayed, it is correct. 4. Open another DOS

MySQL benchmark Test-sysbench 1. When you benchmark the overall website performance, you can use a variety of tools, such as the well-known AB(Apache load), http_load and other tools. Here we do not care about their use. If you want to know, you can

MYSQL entry 5: MYSQL Character Set link: MYSQL Entry 1: basic operations http://www.bkjia.com/database/201212/173868.htmlMYSQL Entry 2: Search Using Regular Expressions http://www.bkjia.com/database/201212/173869.htmlMYSQL Entry 3: Full Text Search

[Architecture] MySQL Log File-Binary Log: Binary Log & Binary Log Index first find these two files, [plain] Rocky @ localhost> show variables like 'datadir '; + --------------- + bytes + | Variable_name | Value | + --------------- + bytes + |

Configure CACTI to monitor MySQL database statusMySQL itself is not powerful in performance monitoring, which makes many MySQL DBAs sleep at night,Fortunately, the MySQL database status is monitored through Cacti (note that monitoring is not

MySQL database server optimization details I recently checked some information about MySql Optimization on the Internet, and completed some tuning settings in accordance with the MySql manual, but because the time is not busy, before you can

Using MySQL Slow Log to solve the problem of high CPU usage in MySQL sometimes finds that MySQL occupies a high CPU usage in Linux VPS, resulting in a high system load. This is probably because the execution time of an SQL statement is too long.

Use an ssd hard disk to accelerate mysql index query. If the data volume is large but the ssd capacity is not large, you can consider storing the index data on the ssd, store the table data on the old hard disk. So how can mysql build index on ssd

Show when connecting to database tutorialCan't connect to MySQL server (10060 ),Follow these steps: 1. The network is disconnected. Check whether the ping is successful. 2. Firewall settings. Whether the firewall has spared the mysql tutorial

In fact, we only use the show usage in the mysql tutorial. The simple operation in mysql is as follows: Show table In this way, all the tables are displayed, but they are different in the php tutorial. Let's look at the following code: $ Server =

Script in/home/user/mysql tutorial _ backup. sh Crontab # Crontab-l # M h dom mon dow command 28 16 ***/home/user/mysql_backup.sh The script is as follows: #! /Bin/sh # Mysql_backup.sh: backup mysql databases and keep newest 5 days backup. # # Last