MySQL

sudo apt-get install mysql-server mysql-clientInstalling the MySQL Management interface software: EmmaChoose from Ubuntu Software Center directly click to downloadIf the database is UTF8Directly modify Emma's source file, to implement, the newly

[Mysqld]Port = 3306ServerID = 1Socket =/tmp/mysql. sockskip-locking Avoid the external locking of MySQL and reduce the chance of error to enhance stability.Skip-name-resolveDisable MySQL for DNS resolution of external connections, and Use this

Method One: Create an identical table structure (including indexes, excluding data in the table)mysql> desc t_my_series;+-------------+------------+------+-----+---------+----------------+|  field       | type       |  Null | Key | Default | Extra   

MySQL Backup and recovery:1, disaster recovery;2, Audit;3, testing;Backup: The purpose is to restore, and to test the backup data;Backup type:Whether the database server is online depending on the backup:Cold: Cold BackupWin Bei: Warm backupHot

Main Library server: 192.168.1.100From the library server: 192.168.1.101Install MySQL on both servers,Yum-y install MySQL mysql-server mysql-devel Primary service Settings • Set Password:/usr/bin/mysqladmin-u root password ' passwd '.•

You installed MySQL No, did not install first, after installing MySQL, In the bin directory there is a Mysqld.exe, run the program can be added to the MySQL service, but run the program requires the use of parameters, otherwise it will start the

Typically, when using MySQL, you will find a ranking of data based on multiple ranking criteria, with the same conditions.Suppose there are table tables, two criteria fields Conditiona descending sort and conditionb ascending sort, the same

1. EntitiesAll kinds of data management objects, such as database tables, views, stored procedures, etc. , are the database entities in the database management system, which are convenient for data management. Broadly speaking, the data stored in

First, the principleMySQL master server records the various operations in the binary format into the Bin-log, from the connection master, and read the Bin-log, to achieve data synchronizationBackup: mysqldump-uroot-p 123456 db >1.sqlImport:

1. Give root all authorized accounts SQL talentGrant all privileges on * * to [e-mail protected] "%" identified by ".";Flush privileges;2. Create a bat batch file@echo offset path=%path%;D: \program Files\mysql\mysql Server 5.5\binset

0x00 MySQL database common storage engineMySQL database is an open source database, supporting a variety of storage engine options, such as the most commonly used storage engine is: Myisam,innodb,memory.MyISAM Storage EngineMyISAM is the default

This period of time to understand the MySQL Shard technology and master-slave copy just tidy up the mind map to draw a record, hoping to give the people who need some helpP.S.: Personal finishing, there may be errors, but also hope that the ~The

These two days let entityframework tortured a bit, the connection MySQL generated entity is always flash back.On the internet there is no specific reason for the flash back.So I can only bite the bullet to solve this problem.That's not a lot of crap.

The modified users are listed as root.first, the root of the original myql password;Method One:Outside the MySQL system, use the Mysqladmin#mysqladmin-u root-p Password "test123"Enter Password: "Enter the original password"Method Two:By logging into

A federated index is also called a composite index. For composite indexes: MySQL left-to-right uses fields from the index, and a query can use only one part of the index, but only the leftmost section. For example, the index is key index (A,B,C).

MySQL queries are case insensitive by default, such as:SELECT * FROM table_name where a like ' a% 'SELECT * FROM table_name where a like ' A% 'SELECT * FROM table_name where a like ' a% 'SELECT * FROM table_name where a like ' A% 'The effect is the

Test tableTo find out what a user is doing, combine the actionsThe following SQL can be used to achieve the purposeSELECT as Operation from Test GROUP by NAMEThen to find out how many such users, directly after the Select plus the count ()

#!/bin/shDump=/usr/local/mysql/bin/mysqldumpOut_dir=/data01/mysqldata_bakLinux_user=bakmysqlDb_name= database namedb_user= User Namedb_pass= PasswordDays=7CD $OUT _dirDate= ' Date +%y_%m_%d 'Out_sql= "$DATE. SQL"Tar_sql=

The difference between MySQL stored procedures and MSSQL 1. MSSQL 's keyword procedure can be abbreviated as proc, while MySQL cannot; 2.  mysql parameter to declare is in , out or inout mssql no; 3. MySQL calls the stored procedure

The first time I uninstalled MySQL has not been uninstalled cleanly, at that time did not work, directly reinstall the system to solve. Until today, I met this problem, hadn't ah, on the Internet to check a variety of information, with a half-day to