MySQL

1, before using PowerShell operation MySQL, need to download MySQL Connector Net 6.9.5 (self-degree Niang)2, download the installation, you need to find the directory of its installation, and find to connect and operate MySQL DLL files, such

1, do not use Mycat hosting MySQL master server , simple use the following configuration:Writetype= "0" dbtype= "MySQL" dbdriver= "native" switchtype= "1" slavethreshold= ">"selectuser () password= "123456" >2 , using Mycat managed master-slave

Sudo/etc/init.d/mysql stopsudo mysqld_safe--user=mysql--skip-grant-tables--skip-networkingMysql-uroot-pEnter your own MySQL passwordmysql> use MySQL;Reading table information for completion of table and ColumnNamesCan turn off this feature to get a

mysql recursive query,MySQL from the subclass ID query all the parent class (do unlimited classification often used)Because MySQL does not support recursive query syntax similar to Oracle with ... connectIt was thought that a similar query would

Objective The book reads times, its righteousness is self-existing. We all know, but now the society is really impetuous, and how many people can calm down to see the book?! As long as a problem is Baidu, Google ... In fact, the book is very

2015-10-25DirectoryResources[1] Tang Hanming. mysql database development, optimization and Management Maintenance (2nd edition) [M]. Beijing: People's post and Telecommunications press, 2014[2] Schwartz. High-Performance MySQL (3rd edition) [M].

2015-10-24DirectoryResources[1] Tang Hanming. mysql database development, optimization and Management Maintenance (2nd edition) [M]. Beijing: People's post and Telecommunications press, 2014[2] Schwartz. High-Performance MySQL (3rd edition) [M].

2015-10-24DirectoryResources[1] Tang Hanming. mysql database development, optimization and Management Maintenance (2nd edition) [M]. Beijing: People's post and Telecommunications press, 2014[2] Schwartz. High-Performance MySQL (3rd edition) [M].

2015-10-24DirectoryResources[1] Tang Hanming. mysql database development, optimization and Management Maintenance (2nd edition) [M]. Beijing: People's post and Telecommunications press, 2014[2] Schwartz. High-Performance MySQL (3rd edition) [M].

1, set up the table user and insert data (at this time the database is users, the user name is root, the password is 123456)Create Table User varchar( varchar); Insert into User Values ('tufujie','123456');2. Writing Java files//demonstrates how

Installing the MySQL databaseAs we all know, the data is very important, once the data is lost, can not explain to the company, you may not be able to go down, so select the database must choose the public, we all use.Communication found that most

A SQL language that is compiled beforehand and stored in a database.First, create a functionTo create a format:CREATE FUNCTION sp_name ([func_parameter[,...])RETURNS type[Characteristic ...] Routine_bodyFunc_parameter:Param_name typeSummary: The

Yum install MySQL There are many ways to install MySQL, and now we are mainly talking about yum installing MySQL. 1. MySQL websitewww.mysql.com to download the latest version2.MySQL packages that need to be installedMySQL-server ServerMySQL

A small script that makes logical backups with mysqldumpFor small data volume backup, whole library, by date, by library, by table, classification# date-s "2015/01/01" && bash mybackup.sh#！ /bin/bash# using mysqldump for logical backup # directory

In the MySQL database, if you do not specify the innodb_file_per_table parameter to separate the data for each table, the MySQL data will be stored in the Ibdata1 file.MySQL ibdata1 storage data, indexes, etc., is the most important data source of

Introduction to DatabasesI am not a technical manual, not for preaching, just a little bit of personal opinion, idle to chat.Do know, the Web server parallel plus 10 units is very easy, but the database parallel plus 10 is difficult, even if added

MySQL instance group with DNS and Mha/zabbix architecture:DNS build:http://www.cnblogs.com/jiangxu67/p/4801230.htmlMHA Analysis:http://www.cnblogs.com/jiangxu67/p/4487248.htmlThe general idea is the front-end application and the database through the

Tags: mysql database/dba/Delete database tablesOverviewBecause there are some things, from the publication of an article to the middle of the current interval of several months, in the following time will be published on some of the MySQL articles,

1, Numerical type:Tinyint:1 bytesSmallint:2 bytesMediumint:3 bytesInt:4 bytesBigint:8 bytesFloat:4 bytesDouble:8 bytesDecimal (M,c): M represents the total length of this fixed-point floating point data, because decimal is a large number of list

Smaller is usually better It's simple. Try to avoid null One, integer typeThere are two types of numbers: integers and real numbers. If you store integers, you can use these kinds of integer types: tinyint,smallint,dediumint,int,bigint.