MySQL

This tutorial is intended for WebEx VPS and cloud host products with Win2003, WinXP operating systems.What if the administrator forgets the MySQL password? Repeatedly entered the password, still prompt error, the site does not work properly, the

MySQL's storage engine is a plug-in form of work, this should be a major feature of MySQL! According to the "in-depth understanding of MySQL" content, the 5.1 version of the storage engine plug-in is not exhaustive, is exactly the feature that was

Yesterday Win7 suddenly started to, helpless, can only re-install the system.Prior to installing MySQL is the Windows Installer, and installed on the D disk, the database is stored in the D-disk programdata. Now, after the reload is complete, how to

Role: Maintain data consistency, integrity. Implement one-to-one or one-to-many relationships. (In the course of learning, the teacher said, the actual production, generally do not use physical foreign key constraints, are the use of logical foreign

About the 3NF of the database:In order to build a database with small redundancy and reasonable structure, we must follow certain rules when designing database. In a relational database, this rule is called a paradigm. A paradigm is a summary of a

When creating a configuration, it was found that Urlparser could not find it, so only the configuration file could be used, but it was more intuitive to use the configuration file than to initialize it with the URL. New Configuration (

4 ways to start MySQLIt's all about calling the Mysqld file.1. Mysqld StartEnter the directory where the Mysqld file is located (/.. /LIBEXEC/MYSQLD)./mysqld--defaults-file=./my.cnf--user=mysql2. Mysqld_safe StartEnter the directory where the Mysqld_

140109 15:13:13 [Note] slave:received end packet from server, apparent master shutdown:140109 15:13:13 [Note] Slave I/O thread:failed reading log event, reconnecting to retry, log ' mysql-binlog.000899 ' at POS Ition 301029473140109 15:13:14 [Note]

What is an index: The index is the database through a certain organization (b-tree, etc.) to create the index column on the value and location of storage has reached the purpose of fast query. Types of indexes: (1) Primary key

A blog, a site is the most important is the database, so it is necessary to back up the data frequently. Although WordPress has regular backup of the data plug-in, but only back up the current blog, not flexible. Suitable for personal small blog,

In CentOS 6.4, the installation of MySQL via Yum is version 5.1, older, so you want to install the high version of 5.6.14 via source code.Text: One: Uninstall the old versionUse the following command to check if MySQL Server is installedRpm-qa |

Explain can view the execution of the SQL statement, you can see the number of rows scanned per condition, and when SQL queries are needed within the system, look at the performance of the statement using explain.1. Indexes are often used to

Mysql data backup and recoveryBackup/recovery policies:1. Regular mysql backup and recovery time that the system can afford should be taken into consideration.2. Make sure that mysql opens log-bin. With binarylog, mysql can perform full recovery,

Configure remote access for mysql By default, mysql cannot be called remotely. In the project development process, this situation cannot be avoided. Install mysql. This installation-free version has been introduced in the relevant

Cause Analysis and Solution for MySQLserverhasgoneaway Error Cause 1. MySQL service is downThe method for determining whether this is the cause is simple. Run the following command to check the mysql running duration:  $ mysql -uroot -p -e "show

MySql Chinese recognition problems I have always wanted to avoid the problem of MySql Chinese recognition, but I did use it when I was working on the project today, which made me very angry, after trying every means, I finally found a solution that

Mysql basic usage Summary1. Download and installNote that you need an Oracle account to download it.2. Start mysqlRun the following command to install mysql:Set it as an environment variable and set: \ binAdd the directory to the environment

Comparison between select into in mysql and select into in SQL, mysqlselect Now there is a table named student. I want to copy the data in this table to a new table named dust.Answer 01:Create table dust select * from student; // when no new table

MySQL database Optimization The following articles mainly describe how to implement simple and practical Optimization of MySQL databases, and what specific operation steps are worth your attention. The following articles mainly describe how to

Specific digits of the database field obtained or queried by MySQL Mysql is often used to query specific fields and occasionally needs to display a part of the value of a specific field. How can this problem be solved?Then there is a fuzzy query, if