MySQL

After logging on to mysql by default, you can view the system VARIABLES and their values using the show variables statement. Mysql> show variables like '% character % ';(The following is the settings under the CentOS-6.2 (different versions may be

Mysql local computer cannot start error 1067: Unexpected Process Termination problem 1. Start mysql service after Reinstallation, prompt local computer cannot start mysql service error 1067: Unexpected Process Termination. 2. Check that there is a

Setting the maximum number of connections for mysql after the MYSQL database is installed, the default maximum number of connections is 100. Generally, the number of connections for forums or websites with a slightly larger traffic is far from

An article library contains two tables: category and article. There are 10 classified data entries in category. There are 0.2 million articles in articles.There is a "article_category" field in article that corresponds to the "category_id" field in

Using mysqlsla to analyze mysql logs mysqlsla is a MySQL Log Analysis Tool launched by hackmysql.com. It can be used to analyze mysql slow query logs and analyze slow queries, it can analyze the execution frequency, scanned data volume, and consumed

Create a function: 1. A stored function is also a procedural object, similar to a stored procedure. They are code snippets composed of SQL and procedural statements and can be called from applications and SQL. However, they also have some

Install 011 for MySQL 5.1 In CentOS. Download the source package 02 wget http://mysql.llarian.net/Downloads/MySQL-5.1/mysql-5.1.63.tar.gz032 . Decompress 04 tar zvxf. /mysql-5.1.63.tar.gz053. configure configure06. /configure -- prefix

The background for mysql to view the table structure and existing index information is to give a table name and the corresponding table structure information and index information. Common commands are as follows: desc tableName; desc employees.

MySQL has been engaged in development for several years, but there are few opportunities for accessing MySQL in terms of databases. Recently, I took over the project using MySQL in terms of data. Therefore, I am also a little bit worried about

Mysql operation primary key 1. query the primary key [html] SELECT t. TABLE_NAME, t. CONSTRAINT_TYPE, c. COLUMN_NAME, c. ORDINAL_POSITION FROM www.2cto.com INFORMATION_SCHEMA.TABLE_CONSTRAINTS AS t, INFORMATION_SCHEMA.KEY_COLUMN_USAGE AS c WHERE t.

Solve the problem that MySQL displays garbled characters on the terminal and webpage. After multiple queries, I finally found a solution to solve the problem that MySQL displays garbled characters on the terminal and webpage in Linux: add SETNAMES

Debian install MYSQL # chmod 755 mysql-5.5.25.tar.gz # tar xfz mysql-5.5.25.tar.gz unzip and generate 5.5.25 directory, we enter this directory: cd mysql-5.5.25 after entering began to configure mysql, during the configuration process, we need to

Mondrian has not moved mondrian since importing demo data to mysql for a long time. Many steps have been forgotten. At the same time, the steps for the old version and the new version are somewhat different. This time, you need to use mondrian3.3,

MySQL Treat Tiny As Boolean Analysis Using MySqlClient to access the tinyint unsign field returns Boolean values true and false, but in fact the stored value of this field is 1-255 analysis: because there is no Boolean value in Mysql, mySqlClient is

Troubleshooting of data file creation failure in mysql innodb/etc/my. cnf configuration www.2cto.com [mysqld] datadir =/var/lib/mysqlsocket =/var/lib/mysql. sockuser = mysql # Default to using old password format for compatibility with mysql 3.x#

Install mysql 5.5.8 Error Nr.1364 authentication_string In the last step of installing mysql 5.5.8. When applying security configuration, the Error dialog box is displayed. Solution to Error Nr.1364 authentication_string: 1. Do not close this window

MySql stored procedure-5, logical judgment, and condition control links: MySql stored procedure-1. The basic knowledge of SQL stored procedure is similar to that of programming, the stored procedure also has the corresponding condition judgment, and

MySql snacks-3, Locale related links: MySql snacks-1, the assignment operator "=" and ": =" Locale is no longer familiar with programming, select resources in different language environments.MySql provides Locale support for the date. Mysql uses the

In mysql, the int type is used to process decimal places. In mysql, the int type represents an integer. What should I do if a non-integer type is used? CREATE a stored PROCEDURE and test create definer = 'root' @ 'localhost' PROCEDURE 'test' ()

Install mysql [root @ sample ~] # Yum-y install mysql-server Plugin install MySQL [root @ sample ~] # Yum-y install php-mysql plugin install php-mysql configure mysql [root @ sample ~] #/Etc/init. d/mysqld stop mysql service [root @ sample ~] #