MySQL

Export command: Mysqldump-uroot-proot-r -- databases db1 DB2 -- result-file = C:/123. SQL -- default-character-set = GBK -R: including storage in the exported SQLProgramAnd user-defined functions; -- Databases XXX: includes several databases.

Mysql> show create table tb_common_member;+ ------------------ + ---------------------------------------------------- +| Table | CREATE TABLE|+ ------------------ + ---------------------------------------------------- +| Tb_common_member | create

MySQL Default encoding is Latin1, does not support Chinese, so how to modify the default encoding of MySQL, the following UTF-8 as an example to illustrate how to modify the default encoding of MySQL. The simplest and most thorough method in

1. Set the character set UTF-8 during MySQL installation. The JDBC driver is later than 3.0.15. 2. Add attributes to the hibernate configuration file. true UTF-8 3. Set filter in Web. xml=======================================================

Part1: Change MySQL Default character set to utf8 in my. CNF Http://stackoverflow.com/questions/3513773/change-mysql-default-character-set-to-utf8-in-my-cnf [Mysqld]Init_connect = 'set collation_connection = utf8_unicode_ci'Init_connect = 'set names

I. MySQL Stored Procedure First, let's talk about the creation Syntax: CREATE PROCEDURE sp_name ([proc_parameter[,...]]) [characteristic ...] routine_body Here is a simple example. "Pr_add" is a simple MySQL stored procedure. This MySQL stored

It is better to explain the classification of the database separately. However, as a skill, it is hard to determine how to classify the database. Backup method:First, obtain the installation path of the MySQL program through the registry. If it is

Turn: http://www.68design.net/Development/Database/25689-2.html Many friends have installed MySQL but do not know how to use it. In this article, we will connect to MySQL,You can learn some common MySQL commands by changing passwords and adding

Reproduced http://isky000.com/database/mysql-performance-tuning-hardware Next, the last article on selecting the storage engine for MySQL database performance optimization is the sixth article in the MySQL database performance optimization topic

Extract php-5.0.5-win32.zip to the target file, save PHP. ini-Dist as PHP. ini, and modifyExtension_dir = "D: \ PHP \ Ext" // maps to the extension file of the PHP extension file, which is saved to some extension DLL, such as php_mysql.dll and

Original article address:'Mysql' is not an internal or external command, nor is it a solution for running programs or batch processing files Author:Yan peifeng 'Mysql' It is not an internal or external command, nor a workable program or batch file

Mysqld Program-directory and file Reference Basedir = PATH uses the given directory as the root directory (installation directory ). Character-sets-Dir = path indicates the directory where the character set is stored. Datadir = path reads database

For example, as shown in, the emailsource field of the database is summarized by date. Therefore, we can write the following SQL statement class to solve this problem. SELECT sum(case when `EmailSource`='FM' then 1 else 0 end) as

The preferred engine for transactional databases. It supports acid transactions and row-level locking. InnoDB is designed for maximum performance when processing massive data volumes. The InnoDB Storage engine is fully compatible with the MySQL

ChecklistCheck table table_name;Repair tableRepair table table_name;Optimization tableOptimize table table_name;Analysis tableAnalyze table table_name;Clear tableTruncate table_name;Delete tableDrop table_name;Drop table if exists table_name; Show

OurMySQL BackupSevere System ProblemsBug Originated fromOpen SourceSoftware XtrabackupA bugHttps://bugs.launchpad.net/percona-xtrabackup/+bug/722638 We have not encountered this problem before large-scale deployment. After converting the counter to

1. Obtain the total number of processes under the MySQL user PS-Ef | awk '{print $1}' | grep "MySQL" | grep-V "grep" | wc-1 Ii. Host performance status # Uptime [Root @ ~] # Uptime13:05:52 up 53 days, 52 min, 1 user, load average: 0.00, 0.00,

Show table status returns the following fields: Name Table name. Engine Table storage engine. Before MySQL 4.1.2, this value is marked as type. Version The version number of the. frm file of the table. Row_format Row Storage Format

Recently, the customer's response to a page is getting slower and slower. It takes more than a dozen seconds to complete the operation. SQL is not complex, probably because: Select field from table 1 where field 1 not in (select Field 2 from table 2

Published on blog.csdn.net/zxub After MySQL is installed, phpMyAdmin is used again, and a problem is found. You cannot create a new database when logging on to MySQL using a common SA user. After re-installing the PHP runtime environment and