MySQL

CentOS 6.4 Installing the Configuration Lamp Server (apache+php5+mysql)This article mainly describes the CentOS 6.4 installation configuration Lamp server (Apache+php5+mysql) method, the need for friends can refer to the followingPrepare the article:

Troubleshoot problems with using dbexpress to connect MySQL database in Delphi XE  The Delphi IDE contains a component of Data Explorer, as shown in:The component is based on dbexpress (including Tsqlconnection, Tsqldataset, Tsqlquery,

Recently, in the project group used by the MySQL database, the insertion of data garbled, on this issue to make a summary, we start from the most basic point, to the root causes of errors and solutions.Basic concepts? A character (Character) is the

MySQL reserved word list. Bark finishing.Attempting to use a qualifier, such as using an embedded MySQL data type or function name as a table or column name, such as timestamp or group, can cause a common problem. Allows you to do this (for example,

20 Experience tuning MySQL performance optimizationPublished: February 15, 2012 published by: OurmysqlSource: Web Base is read: 3,354 kills 0 comments This article will introduce you to 20 MySQL performance optimization experience, these little

The biggest benefit of backup is that you can recover from the loss or corruption of your database tables. Even if you are not greedy, just hope to recover part of you are also very happy, right? Sometimes, it is the MySQL administrator that causes

1, System Management 1.1 connection MySQLformat : mysql-h host address-u user name-P user PasswordExample :Example 1: Connect to MySQL on this computer.First open the DOS window, and then enter the directory Mysqlbin, and then type the command

1. Some problematic reads in the transaction: dirty read, non-repeatable read, Phantom readThe dirty read (Dirty Read) transaction T1 updated the contents of a row of records, but did not commit the changes. The transaction T2 reads the updated row,

The integer type int in MySQL is mainly as follows:The range of tinyint is -128~127;int ranges from -2^31 (-2,147,483,648) to 2^31–1 (2,147,483,647) for integer data (all numbers), with a storage size of 4 bytes;The bigint range is the integer data (

1. Optimize your query for query cachingMost MySQL servers have query caching turned on. This is one of the most effective ways to improve sex, and this is handled by the MySQL database engine. When many of the same queries are executed multiple

The database that exists by default: Mysql Requires root permission to read Information_schema exists in more than 5 versions Test for the presence of an injection methodFalse: Indicates that the

MySQL Database tool class--datatable batch join database (NET version), Mysqldbhelper General class want to be useful to everyone, the code is as

Many times, when viewing database files for certain projects, it is not common. sql files, but. frm,. MYD,. Myi These three files, this time a lot of friends do not know how to check.PO Master is also in Baidu on the search, read an article after

String functions1.ASCII (str)Returns the ASCII value of the first character of the string str (str is empty when the string returns 0)SELECT ASCII (' 2 ');->502.ORD (str)If the string str first is a single byte, returns the same value as the ASCII ()

Description:My ECS is just rented pure, all the environment need their own settings, this article is my entire process to share, the online read a lot of information, inspired very big, but failed many times, there are installed through the rpm file,

MMM is Master-master Replication manager for MySQL (MySQL master replication Manager) a set of scalable scripting suites for monitoring, failover, and management of MySQL primary master replication configuration (only one node can be written at any

Reprint please indicate source, original address http://www.cnblogs.com/zenki-kong/p/4382657.htmlJust started blogging, Bo Master is just a junior Wang, not fine, if there are mistakes also please predecessors pointed (>^ω^The next blog should talk

How to Use the AVG function in MySQL to calculate the average value, The AVG function of MySQL is used to obtain the average value of fields in various records. For more information about the AVG function, consider that the EMPLOYEE_TBL table has

How does a MySQL DBA get Facebook offer? (1) We will not go into details about how powerful Facebook's technical capabilities are. It is a very challenging and interesting thing to be able to engage in technical work in such a large number of

How does navicat connect to mysql? Detailed graphic tutorial on connecting navicat to mysql The latest version of navicat for mysql comes with a registration code. If it is already green, decompress it to any directory to run it. Navicat Premium is