mysql default

Original address: http://blog.sina.com.cn/s/blog_4c197d420101awhc.htmlA transaction is the execution unit of a DBMS. It is made up of a limited number of database operation sequences. But not any database operation sequence can be a transaction. In

In fact, the cause of the problem is still due to the problem of coding, the site database settings are GBK, mysql default is GBK, but the export of data when the UTF8 SQL file, no matter how I re-import, after connecting to the database using set

"Reprint" http://www.cnblogs.com/AndrewXu/p/4779648.html1. Open cmd, input, enterMysql-uroot-p-p3306-h127. 0.0.1 1)-U: Specifies the user name, Root is the super-privileged user.2)-P: Enter the password, enter the password when not specified, and

1. Download the installation packageDownload. RPM Format installation package, requires the following two files:mysql-server-5.0.26-0.i386.rpmmysql-client-5.0.26-0.i386.rpmNote: When the official website downloads, if chooses the Linux generic

Small Q: impregnable pass apocalypse is really like iron, and now the beginning of the more. --"Yi Qin Yu, Lou Shan"Long time no record, originally a sum up a lot of problems, but because just entered the workplace, a lot of things to be positive,

Software used: MySQL serverOne, create a table with creat Create table candidats(candidats_id Int (ten) not null auto_increment,Candidats_name Char (TEN) is not NULL,candidats_addr char () NULL,Candidats_age char (TEN) NULL,Candidats_school char ()

Basic concepts• The character (Character) refers to the smallest of the ideographic symbols in the human language. such as ' A ', ' B ' and so on;• Given a series of characters, each character is given a numeric value that represents the

1, check MySQL and related RPM package, whether installed, or removed if there is an installation. Rpm-qa | Grep-i MySQLYum-y Remove mysql-libs*2, according to the system download RPM package, I downloaded the

General installation of the MySQL program process, there is a step to choose MySQL default encoding format, Cheng think Latin1 encoding format, of course, you can choose the third option, manually select GBK or UTF8 encoding format to support

If you have not modified the configuration of MySQL, by default, the initial value of Wait_timeout is 28800.Wait_timeout has a lot of drawbacks, its embodiment is that a large number of sleep in MySQL can not be released in a timely manner, drag

(1) The simplest method of modification is to modify the character set key values in the MySQL My.ini file,such as Default-character-set = UTF8Character_set_server = UTF8After the modification, restart the MySQL services, service MySQL restart use

The database has different storage and management methods for the same data, which is called the storage engine in MySQL.The common storage engine has myisam,innodb,memory,mysql default is InnoDB.MyISAM bulk insertion speed is faster than InnoDB,

MySQL cluster, MySQL master-slave architecture, MySQL load balancerMySQL Master-Slave synchronizationPrinciple:Replication ThreadsMySQL Replication is an asynchronous copy process, copied from one MySQL instace (we call Master) to another MySQL

0. Modify the server's host file (/etc/hosts) 192.168.152.146 index.wenice.146.cn 192.168.152.146 user.wenice.146.cn 192.168.152.146 admin.wenice.146.cn 192.168.152.146 security.wenice.146.cn 192.168.152.146 help.wenice.146.cn 192.168.152.146

The easiest way to do it 1, applications (such as PHP) for a long time to execute the batch of MySQL statements. The most common is acquisition or new and old data conversion. Solution: Add or modify the following two variables in the my.cnf file:

A remote connection to the MySQL database prompts the following message: "MySQL connect error–1130:host ' 202.43.**.** ' is not allowed to connect to this MySQL server" Originally in the Create MySQL account is, limited Connection account remote

In the process of inserting Chinese into MySQL, the system complains: Illegal mix of collations (latin1_swedish_ci,implicit) and (Utf8_general_ci,coer) This is because the MySQL default encoding format is not the same as the data stored in the

Question: When Unbuntu used Eclipse to write a program, it found that the Chinese characters that were stored in the database MySQL became the???Cause: The default encoding for Eclipse and MySQL is inconsistentWorkaround: Set both the Eclipse and

Syntax: CREATE TABLE table name (field name 1 type [(width) constraint], field name 2 Type [(width) constraint], field name 3 Type [(width) constraint]); Note:1. In the same table, the field name cannot be the same as 2 . Width and constraints

Recently to some students asked me some of the relevant knowledge of the business, under high concurrency, what is the performance impact of the transaction? Will there be a problem with clogging? How MySQL handles these ..... Suddenly I remember