MySQL

1. Prepare the mysql decompressed File ftp://ftp.iij.ad.jp/pub/db/mysql/Downloads/MySQL-5.5/mysql-5.5.22-win32.zip 2. decompress the package to the local Directory D: \ devTools \ mysql 3. add the system environment variable MYSQL_HOME ==> D: \

MySQL Database Table Corruption Solution Process:1. log on to the unified information platform in the morning to discover IMU service exceptions; 2. Check related processes to find that mysql and web application services have disappeared; 3. Ask the

LAST_INSERT_ID () in mysql analyzes the correctness of LAST_INSERT_ID under high concurrency in php with a discussion today. At the beginning, we were all vague. Later, after mutual query, I have a clear understanding of this issue. I sent this

To disable a MySQL (Version 5.1) server process, we recommend that you use the mysqladmin client tool Background:It is very important to close the MySQL server process correctly. Improper methods will cause database damage. crash Method 1: Use the

Analysis of the scalable design of MySQL Sharding I. Background We know that when the data volume in the database is getting bigger and bigger, the pressure on both reading and writing will increase. The MySQL Replication multi-master and

MySQL storage engine note storage engine overview plug-in storage engine is one of the important features of MySQL database, users can choose how to store and index data, whether to use things, and other features such as www.2cto.com based on

I plan to write some knowledge about database operations. Now I have finished the first article. The following describes the basic knowledge about mysql operations. In the window, start and stop the mysql service to start mysql Database net start

The Alter database processing logic of MySQL database is not as terrible as Alter table, and the processing logic is clear. First, check whether the database name is effectively called check_db_name () (table. cc: 2876) to check whether the database

Mysql backup and recovery commands on windows/linux servers: mysql backup and recovery on windows Servers we often use the mysqldump command to complete these operations, next I will give a detailed summary of the usage of the mysqldump Backup

MySql adds and deletes fields, modifies field names, and modifies simple syntax of the field type MySql, which is commonly used but not easy to remember. Of course, these SQL syntaxes are basically common in various databases. Listed below: 1. add a

Analysis of MySQL binary logs is generally used for Database Synchronization. Because binary logs record all changes in the database, SLAVE can perform the same update, in fact, binary logs can be used for writing and playing back the database, so

During MYSQL database Replication, the incorrect method is skipped. During MYSQL Replication, sometimes the Replication SQL process is incorrect due to different POS points on the master and slave sides, leading to master-slave Replication failure.

Mysql functions: the Last_insert_id () syntax explains that Mysql functions can implement many of the functions we need. The Mysql function Last_insert_id () described below is one of them, and it is helpful for you to learn Mysql functions.

In mysql, you can view the number of records of all tables. in mysql, you can view the number of records of all tables: TABLE_SCHEMA: Database Name TABLE_NAME: Table Name ENGINE: Used storage ENGINE TABLES_ROWS: number of records DATA_LENGTH: the

The replace () function of MySQL introduces a problem encountered during the working process today. replace the "shop.xxxx.net" character in all values of a column in the database with "www.nowamagic.net ", you can write a script to extract all the

In Linux, apache is set, mysql is started, and mysql is set to linux service www.2cto.com cp/usr/local/mysql5/share/mysql. server/etc/init. d/mysqldchkconfig -- add mysqldchkconfig -- level 2345 mysqld onchown mysql: mysql-R/usr/local/mysql5/service

MYSQL _ common database commands 1. log on to www.2cto.com $ mysql -- user = root -- password = xxxxxx 2. database Operations list all databases mysql> show databases; create database mysql> create database x123; delete database mysql> drop database

Mysql multi-table joint query returns the content of a table. An error is reported when mysql statements are used today. The statement is as follows: SELECT sapcle FROM SellEnterpriseBaseInfor sebie, SellEnterpriseBaseInforVer sebive,

Change the default Character SET Method of MySQL. method 1. Use the SET syntax to specify the default character SET. If "GLOBAL" is not added, it is only valid for this session www.2cto.com SET [GLOBAL] character_set_client = utf8; SET [GLOBAL]

I used windows for development, so I didn't feel a problem when I deployed my yii project to linux today, if the rbac table of yii cannot be found, the following error occurs: www.2cto.com CDbCommand cannot run the SQL statement: SQLSTATE [42S02]: