engine myisam

Mysql modifies the database's storage engine (InnoDB), mysqlinnodbThe current example is to change the engine MyISAM to innodb.View the supported database engines and default database engines of the current databaseDatabase-supported engines and

Introduction:Reference a section in the MySQL official document: the MERGE storage engine, also known as the MRG_MyISAM engine, is a set of identical MyISAM tables that can be used as one. "same" means that all tables share the same column and index

Requirements: 1. When you access votesys.com, you can view the list of voting items, vote, and limit the number of voting items. 2. the backend can add items for voting, and there will be verification (server verification) when adding the items) 3.

Mysql performance optimization 2: mysql Performance Optimization Next, Mysql performance optimization 1Create an appropriate index To improve database performance, indexing is the best and inexpensive. There is no need to add memory, no need to

Mysql database performance optimization 1. mysql Performance Optimization Today, database operations are increasingly becoming the performance bottleneck of the entire application, especially for Web applications. Concerning the database performance,

Demo. php: Copy codeThe Code is as follows: /** * Read the SQL file and write it to the database * @ Version 1.01 demo. php */ Class DBManager { Var $ dbHost = ''; Var $ dbUser = ''; Var $ dbPassword = ''; Var $ dbSchema = ''; Function _ construct (

MySQL Benchmark Test Tool MySQLSlap instance MySQLSlap is a benchmark tool provided by MySQL. It can be used without installation. The following describes how to use MySQLSlap to perform basic MySQL tests on the server. 1. cd/usr/local/mysql/bin/ Go

MYSQL: SQL _CALC_FOUND_ROWS and count (*) performance comparison bitsCN.com 1. create a table: // Overwrite the index create table if not exists 'Ben' ('A' int (10) unsigned not null AUTO_INCREMENT, 'BB' int (10) unsigned not null, 'CC' varchar (100)

MySql data engine introduction and selection method bitsCN.com 1. Introduction to Data enginesInMySQL5.1, MySQL AB introduced a new plug-in storage engine architecture, allowing the storage engine to be loaded into the new MySQL server being

This article provides a detailed analysis of the implementation code of PHP execution. SQL file. For more information, see Demo. php: The code is as follows: /*** Read the SQL file and write it to the database* @ Version 1.01 demo. php*/Class

Because of the needs of the company's products, we need to implement A function, such as the basic information of the users in Table A and the user behavior in table A stored in Table B, table C and Table B are of the same nature. When the query is

This article mainly introduces ThinkPHP3.2's related information on the associated query solution. if you need some friends, you can refer to it and paste the code directly. the code is very simple, these are common SQL statements. For more

Data fragmentation in mysql is closely related to data deletion. when deleting data, it will inevitably lead to discontinuous blank space in the data file. for deletion of a small amount of data, it does not produce much space. If you delete a large

This article mainly introduces ThinkPHP view query. For more information, see ThinkPHP. ThinkPHP provides a powerful view query application. you can use the View query function to specify and filter fields of multiple data tables as needed and

This article mainly introduces the ThinkPHP permission authentication Auth instance. if you need it, you can refer to the following example code to thoroughly analyze the implementation principles and methods of ThinkPHP permission authentication

This article mainly introduces the mysql stress test script. The example shows the complete method for implementing the MySQL stress test. if you need it, refer to the example below to describe the mysql stress test script, share it with you for

MYSQL Query speed is very slow. Is there a problem with my table structure? please take a look. Table 1 is a novel table: Create table if not exists 'book '( 'Bid' int (6) unsigned not null AUTO_INCREMENT, 'Siteid' smallint (2) not null default '0',

Mysql index knowledge sharing (within the company) 3. about Indexes: 3.1 indexes can improve the query, but will slow down the update. the more indexes, the better. it is better to not exceed 20% of the number of fields (in tables with frequent

Introduction to the principle of MYSQL table sharding (forwarding: Reference a section in the MySQL official document: the MERGE storage engine, also known as the MRG_MyISAM engine, is a set of identical MyISAM tables that can be used as one. "same"

-- Php Tutorial myadmin SQL dump-- Version 2.11.6Http://www.phpmyadmin.net---- Host: localhost-- Generation time: jun 29,201 0 at 09:27 am-- Server version: 5.0.51-- Php version: 5.2.6Set SQL _mode = "no_auto_value_on_zero ";/*! 40101 set @