MySQL

Core tips: This article summarizes the mysql-noinstall version, that is, the installation and configuration application of the decompressed version. These operations are commonly used. The article does not describe the executable installation

Copy others, just to keep learning Mysql's left, right, substr, instr truncate string, truncate floatMysql's left, right, substr, instr truncate string, truncate float //----------------------------------------------------------------- Select avg

Author: skateTime: 2012/02/17Installation and Use of MySQL SLA1. Download mysqlsla[Root @ localhost tmp] # wget http://hackmysql.com/scripts/mysqlsla-2.03.tar.gz-- 19:45:45 -- http://hackmysql.com/scripts/mysqlsla-2.03.tar.gzResolving hackmysql.com..

I found a MySQL technical article on the Internet. It feels good. I have translated it and shared it. Author: Mike Peters I have sorted out seven methods to fix the MySQL database. When a simple restart does not work for the database or a table

MySQL numeric data can be roughly divided into two types: one is an integer and the other is a floating point or decimal. Many different subtypes are available for each of these classes. Each subtype supports data of different sizes. MySQL allows us

One-way master-slave backup for MySql Databases in Windows 1. Objective: To synchronize the MySql database on the master server to the slave server,This allows you to update operations on the master server to the slave server in real time to avoid

How does MySQL table name in Linux be case-insensitive? When I tested the table name in linux, I encountered some problems. When I saw the data, I couldn't find it. Later I found that in Linux,Mysql table names are case-sensitive, but are

I used the INI file to remotely connect to mysql. I recently rewritten something and re-wrote the MySql connection. To facilitate flexible application, read mysql connection parameters by reading the INI file. By the way, I learned about the INI

MySQL lock usage-table-level lock mechanism is an important feature of a database that is different from the file system and an effective way to manage concurrent access. MySQL locks include table-level locks, page-level locks, and row-level locks.

Mysql and oracle table field definitions comparison description mysql oracle VARCHAR www.2cto.com variable-length string VARCHAR [0-65535] definition length is calculated by default, if it is GBK-Encoded chinese characters will occupy 2 bytes, if

Ubuntu modify my. the cnf file causes mysql to fail to start. Recently, mysql was configured on the Virtual Machine. After installation, the character set is displayed as show variables like 'character % '; + bytes + | Variable_name | Value |

Run the mysql SQL file mysql-uroot-proot in linux to enter mysql and then run source/var/ftp/pub/sogoodsoft. SQL. Go to www.2cto.com for the following content: Summary of mysql commands in linux-essential for learning linux + mysql I. Summary of

Mysql master-slave replication technology (TEST) to start configuration: www.2cto.com Step 1: Create a replication account. Each slave uses the standard MySQL user name and password to connect to the master. The user who performs the copy operation

Gentoo installation configuration pure-ftpd combined with Mysql permission verification process 1. Install pure-ftpd server # echo 'Net-ftp/pure-ftpd mysql'>/etc/portage/package. useGentoo automatically installs mysql on the local machine. # Emerge

Test Conditions for mysql index test: mysql> show create table users \ G; * *************************** 1. row *************************** Table: usersCreate Table: create table 'users' ('id' int (11) not null, 'name' varchar (45) default null, 'c1 '

Install and configure mysql under ruby on rails install mysql database 1. Install mysql in the system: Download mysql software, many of which can be downloaded on Baidu, or go to the mysql Chinese official website to download and install the

Mysql Stored Procedure Basics [SQL] #1. view all stored procedure names in the database # -- this statement is used to remove a stored procedure. You cannot delete another stored procedure in one stored procedure. You can only call another Stored

MySQL common time function 1.1 get current date + time (date + time) function: now () 1.2 get current date + time (date + time) function: sysdate () the datetime function is similar to now (). The difference is that now () is obtained at the

Description of how to set column Default values in MYSQL MySQL currently does not support column Default as a function. For example, if the Default value of a column is the current update date and time, you can use the TIMESTAMP column type. The

High-performance MySql evolution (1): Data Type optimizationThe database performance tuning process involves a lot of knowledge, including whether the attribute settings of fields are appropriate, whether the index is created properly, and whether