MySQL

The original Peter ZaitsevOriginal source: Http://www.mysqlperformanceblog.com/2006/09/29/what-to-tune-in-mysql-server-after-installationTranslator: Ye Jinlong, reprint please specify the translator and source, and can not be used for commercial

One, install the compilation tool and the dependency package[Email protected] src]# yum-y install GC gcc-c++ pcre-devel ncurses-devel openssl-devel libpng-devel libtool Libxslt-dev El Libxml2-devel Libxpm-devel Curl-develSecond, the installation of

Today the development of the import data in the time to report an error:Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. Some columns to TEXT or BLOBsCause: The imported data row length is found to be

1.   Brief IntroductionThe Tpcc-mysql output includes five business logic, five business logic that forms the entire transaction process for tpcc-mysql testing. The following are the specific examples:New-order: New OrderPayment: PaymentOrder-status:

MySQL database, as one of the most basic data storage services, has a very important position in the whole system, so it is understandable to ask for high availability. There are many solutions that can implement different SLAs (service level

The IDs in the Mysql data table are typically self-incrementing auto_increment that increment themselves with the record of the database table Mysql data table ID Primary key is this is the only value, there will be no duplicate values come

First, select the appropriate data type1. CHAR vs Vchar Char is a fixed-length character type, and varchar is a variable-length character type. CHAR (m) in the data column, each value occupies M bytes, if a length less than M,mysql will be on its

1. First verify that the server is in a secure state, that is, no one can connect to the MySQL database arbitrarily. Because theMySQL database is completely password-protected during the reset of the root password of MySQLStatus, other users can

Introduction:1, phpmyadmin program server: 192.168.1.1, Access address is: http://192.168.1.1/phpmyadmin2, MySQL database server: 192.168.1.2, has allowed the database outside the chain, MySQL database user name: admin password: 1234563, now to

Error hint: General error:1366 Incorrect integer value: "For column ' Pay_type ' at row 1 (SQL:INSERT into ' issues ' (' player_game_id ', ' urgency_degree ', ' source ', ' channel_forum ', ' issue_type ', ' pay_type ', ' status ' , ' issue_pic ', '

For most Web applications, a database is a very basic part. If you're using PHP, you're probably also using the Mysql-lamp series as an important part.For many beginners, using PHP can easily write code with specific features in just a few hours.

Work Description : After building the Percona XtraDB Cluster (a MySQL architecture, referred to as PXC), you need to import the old MySQL data into new MySQL, but PXC only support the InnoDB table, Non-InnoDB tables cannot be synchronized to the

Original link:Http://www.centoscn.com/CentosBug/softbug/2015/0622/5709.htmlProblem Description:Using client Telnet connection on a CentOS 6.5 server based on MySQL, error: Can ' t connect to MySQL server on ' XXX ' (13)Workaround:In general, you can

OverviewLong time no write SQL statements, today to see a question and answer, take a look.Problem Link: Hierarchical output problem with MySQLScenario BriefThe school records the results, each person's choice course is different, and later will add

What is the difference between utf8_general_ci and utf8_unicode_ci in MySQL? In programming languages, it is common to use Unicode to deal with Chinese characters to prevent garbled characters, so why is it that everyone uses utf8_general_ci instead

log analysis software Secilog 1.18 released, increased the MySQL database audit, added a number of Web reports, the log query made more friendly new features, the previous article 1.17, interested to understand. This upgrade mainly adds the

Http://www.cnblogs.com/doit8791/archive/2012/05/11/2495319.htmlA data type is a basic rule that defines what data can be stored in a column and how that data is actually stored. MySQL's common data types include: string Data type : The most

Centos7 configuring MARIADB (MySQL), client logon1045 Access denied for user ' root ' @ ' localhost ' using password Yesmariadb [mysql]> select host,user,password from user;+-----------+------+--------- ----------------------------------+| host      

1. Summary of date and time types in Java and MySQL: 1234567891011121314151617 mysql（版本：5.1.50）的时间日期类型如下：datetime 8bytes xxxx-xx-xx xx:xx:xx 1000-01-0100:00:00到9999-12-3123:59:59timestamp 4bytes xxxx-xx-xx xx:xx:xx 1970-01-0100:00:01

MYSQL 5.7 cannot be started (cocould not open error log file errno 2), mysqlerrno Two days ago, computer viruses appeared to have deleted the mysql log. err file. Then the service cannot be started: cocould not open error log file errno 2. Then