MySQL

1. Test data:create table  ' T_class '   (' id '  bigint  (one), ' name '  varchar  (), ' age '   int  (one), ' class '  int  (one)); insert into  ' T_class '   (' id ',  ' name ',  ' Age ',  ' class ')  values (' 1 ', ' tom1 ', ' + ', ' 1 ');insert 

Binary installation MySQL is very convenient, compared to compile installation, the drawback is that the installation package is too large. Ha ha Start the installation, first develop a good habit, create a directory dedicated to the installation

Use the Mysqldump tool to back up Discuz database to/data/discuz.sql as root user, password aming.com[Email protected] mysql]# mkdir-p/data/bak/mysql/[Email protected] mysql]# mysqldump-uroot-p123456 discuz >/data/bak/mysql/discuz.sqlView the

# mysql-u root-p# allows local IP access to localhost, 127.0.0.1# insert into Mysql.user (Host,user,password) VALUES (' localhost ', ' Zhouz ' , password (' 1234 ')); # Allow extranet IP access # INSERT INTO Mysql.user (Host,user,password) VALUES ('%

First , the Environment preparation node twonode1:10.10.10.202node2:10.10.10.203Server for NFS:node3:10.10.10.204System Environment CentOS release 6.5 (Final)second, create a shared directory of MySQL on the NFS serverMkdir/dataVim/etc/exports/data 1

First, IntroductionMySQL currently has the following types of indexes:1. General Index2. Unique index3. Primary KEY index4. Combined Index5. Full-Text IndexingSecond, the statement create table table_name[ col_name data type ] [ unique|fulltext

The previous blog is about: Build multi-instance service through MySQL binary package http://aby028.blog.51cto.com/5371905/1891423Now introduce a multi-instance by compiling and installing MySQLthe software package used in the experiment:

1. configuration file my.cnf The explanation of several options (the configuration file is placed under [mysqld]Server-id is the node identifier. Must be globally unique (i.e. cannot be the same)Log-bin says that turning on MySQL is the binary

Enter "sudo apt-get update"--Enter the password for the root user--return;Enter "sudo apt-get install mysql-server mysql-client"--enter "Y"---enter "root" in MySQL in the "Package Setup dialog box" The user's password--Enter and lose the password

To quickly complete the installation CMake, you can install it via yum with the following command:[Email protected] liuzhen]# yum-y install CMakeWait for the completion!Source installation Please continue looking downSource:

Each of the integers is divided into unsigned (unsigned) and signed (signed) types (float and double are always signed), and the integer variable declared by default is a signed type (char is a bit special). If you want to declare an unsigned type,

Mysql 5.7.17 64bit installation and configuration method graphic tutorial, 5.7.17 installation and configuration Windows (10) 64bit mysql 5.7.17 Installation Process The new 64-bit mysql version does not have an mis installation file. Only the free

Detailed description of MySQL index operation commands and mysql index commands Create an index: The syntax for creating an index in MySql is as follows: CREATE [UNIQUE | FULLTEXT | SPATIAL] INDEX index_name [USING index_type] ON table_name

Two methods for removing duplicates from mysql and the instance code. Mysql deduplication Method 1: When using MySQL, you sometimes need to query records with unique fields. Although mysql provides the keyword distinct to filter out redundant

How can I log on to phpMyAdmin after changing the password of MySql? mysqlphpmyadmin After the wamp Integration Server is installed and configured, click PhpMyAdmin to go To the mysql database online client. However, after you change the password

Describes the usage of the concat function (connection string) and mysqlconcat in MySQL. Concat functions in MySQL Usage: CONCAT (str1, str2 ,...) Returns the string generated by the connection parameter. If any parameter is NULL, the return value

MySQL 5.7.16 password Change Prompt ERROR 1054 (42S22): Unknown column ''password'' in ''field list'', 5.7.1642s22 Follow the operations in previous versions on the Internet to remove the skip-grant-tables comment in my. ini, and then use mysql-u

Mysql 5.7.17 winx64 installation-free version, win10 environment installation and configuration graphic tutorial, winx64win10 : Http://dev.mysql.com/downloads/file? Id = 467269 1. decompress the package to the custom Directory: I decompress the

MySQL PHP syntax and instance code MySQL can be used in a variety of languages, including PERL, C, C ++, JAVA, and PHP. Among these languages, Mysql is the most widely used in PHP web development. In this tutorial, most of our instances use the

Mysql 5.7.17 unzip version (ZIP version) Detailed installation steps, mysql5.7.17 Download Decompress version (login required): http://dev.mysql.com/downloads/mysql/ Download the package and decompress it to the directory you want to