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MysqlWhy use the self-increment column as the primary key If we define the primary key (PRIMARY key), then InnoDB chooses the primary key as the clustered index, and if the primary key is not explicitly defined, InnoDB chooses the first non-

Catalog one, basic concept two, how to deploy two MySQL services on a single computer? Third, how to build a master-slave server? Iv. how to achieve read and write separation? V. Reference pages     basic Concepts 1, Master-slave replication: The

1. MySQL 5.5-era undo logIn MySQL5.5 and before, you will find that as the database goes online more and more longer, the Ibdata1 file (that is, innodb shared table space, or system tablespace) will become larger, resulting in 2 more obvious

The first step: Define the backup directory in your Linux server:Copy the code code as follows:Mkdir/var/lib/mysqlbackupCd/var/lib/mysqlbackupThe second step: The following is the most important step, is to write a scheduled backup script.Copy the

Backup and Recovery: backups make the data in the database more efficient and secure . Backup/Restore Policy:Some factors to consider when making a backup or recovery: determining whether the storage engine for the tables to be

First, the basic conceptThe dbms:database Management system is a large software for manipulating and managing databases that is used to establish, use, and maintain databases. Rdbms:relational database Management system, which is based on the

Eight weeks two sessions (January 30)10.28 Rsync Tools Introduction10.29/10.30 rsync Common Options10.31 rsync sync via sshI. Introduction of RSYNC ToolsLinux system has a lot of data backup tools, commonly used is rsync, from the literal meaning of

Ec (2); the php tutorial curl_setopt and the simulated User Login boolcurl_setopt (intch, stringoption, mixedvalue) curl_setopt () function will set options for a curl session. The option parameter is the setting you want, and the value is the value

Requirements:This is the problem that comes up when you do a certificate. at that time, the demand is to be able to print the certificate online, the first operation is to print the HTML directly, and has been lined up (with the Jqprint plug-in) to

This script checks the data integrity of remote backup to the ftp server and whether ftp is sent to the server, if the ftp server is not backed up in time, the script will trigger the SMS alarm function module to generate an SMS alarm. Finally, due

I believe many friends have encountered the problem of website Exchange Server, or success or failure! Today 3A Network small money to tell you is a personal experience, the original Penny has a website is running on the Linux server, the Web

Curl_setopt(PHP 4> = 4.0.2)Curl_setopt -- set an option for CURL callsDescription　 Bool curl_setopt (int ch, string option, mixed value)　 The curl_setopt () function sets options for a CURL session. The option parameter is the setting you want, and

This document records one of the simplest video site systems. Prior to doing some Java EE based on the SSH (Strut2 + Spring + Hibernate) site system, but has not done a video site system, so it is intended to do a "streamlined" video site system to

Recently in the study of download file breakpoint continued, mainly to be able to record the download location, quit the application the next time you can also start downloading from the current location, code for multi-threaded + database, code can

1. class loading process The JVM divides the class loading process into three steps: load, link, and initialize links, as shown in: 1) load: Find and load binary data of the class; 2) link: Verify: ensure the correctness of the loaded class;

Http://www.csdn.net/article/2013-01-10/2813545-Building-Scalable-Web-Architecture Kate Matsudaira, the author of this article, is a beautiful female Vice President of engineering who once worked in top IT companies such as Sun Microsystems,

Most content from: http://blog.zhangjianfeng.com/article/718   Do you often need SSH or Telent to remotely log on to Linux?Server? Do you often have a headache for long-running tasks, such as system backup, ftpTransmission and so on. Generally, we

Linux Doc by: zollty The files written in notepad in windows are different from those written in vim or gedit in Linux! For example, an SH script written in Windows may fail to be executed in Linux. Solution: The reason is: in windows, the line feed

Recently, wxWidgets was used to build a project on the win platform, involving downloading files from the HTTP server. wxhttp found that it would take more than 10 seconds to download a 100-kb file over the Intranet, in turn, I want to use the

SQL injection attacksWith the development of B/S application development, more and more programmers are writing applications using this mode. However, due to the varying levels and experience of programmers, a considerable number of programmers did