MySQL

#0 Change the root passwordMysqladmin-u root-p Password yeqing#1 Delete Unused accountsSelect User,hostfrom mysql.user;Delete from Mysql.user where user! = ' root ';Delete from mysql.user where user = ' root ' and host= ' 127.0.0.1 ';Flush

Mac startup MySQL error: ' Can ' t connect to local MySQL server through socket '/tmp/mysql.sock ' (2) ' Just upgrade the Mac to 10.10 and reinstall Homebrew the prompt that appears: A "/etc/my.cnf" from another install could interfere

commands to back up the MySQL database Mysqldump-hhostname-uusername-ppassword databasename > Backupfile.sql backing up the MySQL database to a format with a delete table Backing up the MySQL database is a format with a delete table that allows

Scenario: Full backups was necessary, but it's not always convenient to create them. They produce large backup files and take time to generate. They is not optimal in the ' sense ' each successive full backup includes all data, even this part, have

in the project development is always to see the background execution of SQL statements, MySQL database is no exception, its view of the general people like to use show Processlist ; command to resolve, the type of SQL statements executed can be

When MySQL turns on the Bin-log log using Bin-log, by default it is not synchronized with the hard disk every time the write is performed, so that when the server crashes, it can cause the Bin-log final statement to be lost.Can be adjusted by this

Log type:First, error log1. Record the information in the server startup and shutdown process2. Error messages during server operation3. Information generated when the event Scheduler runs an event4. Information generated when booting from the

Recently in learning Squeryl, with the MySQL database, programmers are lazy, the program can do, resolute not manual to do. There is a method in scheme that creates a table, when inserting data through a program, it is not possible to insert Chinese,

Type=myisam behind the Create statement type=myisam and Engine=myisam are all statements that set up the database storage engine (older versions of MySQL use type instead of engine (for example, type = MYISAM). MySQL 5.1 supports this syntax for

Run:Pip Install Mysql-pythonThe error is as follows:Downloading/unpacking Mysql-pythonDownloading Mysql-python-1.2.5.zip (108kB): 108kB downloadedRunning setup.py (path:/tmp/pip_build_root/mysql-python/setup.py) Egg_info for package Mysql-pythonSh:1:

Ubuntu MySQL Emma Chinese garbled problem resolution Emma is installed with Apt-get by default, Emma is not supported in Chinese, configuration files or directly modify the Emma program source files (Python). Apt-get installed Emmasudo apt-get

Windows edition MySQL sets the character set to UTF8 all the way   my.ini file in MySQL installation directory   [Client] node Default-character-set=utf8 (Increase) [MySQL] node Default-character-set=utf8 (modified)   [mysqld] Node

Okay, here's the solution to the wrong answer to the MySQL database.1, first determine the problem is mysql_connect () and Mysql_pconnect (), the fault phenomenon is that the function returns NULL, and Mysql_error () returns "No such file or

Using Mysqladmin#./mysqladmin-u root password ' newpassword ' #./mysqladmin-u root-h host_name password ' newpassword 'Usually mysqladmin ' s path is/usr/bin, HOST_NAME is your real host name, e.g. Localhost.localdomain. The quotation marks after

in MySQL, there is a function called "Group_concat", the usual use may not find the problem, in the processing of big data, you will find that the content is intercepted,In fact, MySQL internal to this is set, the default is not set the length is 102

Centos6.5 x64,mysql 5.6.20 X64 are 64-bitBy the way record, convenient Yimeimei.1. Java.sql.SQLException:Access denied for user ' root ' @ ' localhost ' (using Password:yes)Verify that the user name and password are correct.SELECT * from Mysql.user,

Python connects to MySQL database (Debian)The following is a Python 2.* version of the installation method, Mysql-python temporarily does not support Python 3.* versionWhat to do in advance: Install Setuptools, run in terminalsudo python

High Performance MySQL Reading NotesHigh Performance MySQL is a classic book. From the application layer to the database to the hardware platform, all the tuning techniques and common problems are mentioned. Various concepts and techniques of the

Mybatis calls the mysql Stored ProcedureCreate a stored procedure: DELIMITER $$USE `test`$$DROP PROCEDURE IF EXISTS `user_user_selectUserByProAndCity_sp`$$CREATE DEFINER=`demao`@`%` PROCEDURE `user_user_selectUserByProAndCity_sp`(IN provinceId

Mysql_connect v/s mysql_pconnect, mysqlpconnect Original article: mysql_connect v/s mysql_pconnect Translation: mysql_connect v/s mysql_pconnect Translator: dwqs When you need to use PHP to connect to the MySQL database, you will find two database