MySQL light speed tutorial
Date: 2010-07-29| Source: redice's blog|Author: redice|167 onlookers|0 people applaud! // By redice 2010.07.26
// Redice@163.com
The MySQL Learning Outline for the company intern summarizes the most useful knowledge
Yum install ncurses-libs.i686 libstdc ++. i686 libgcc. i686
Http://rpm.pbone.net/index.php3/stat/3/srodzaj/1/search/libaio.so.1%28LIBAIO_0.1%29
Libaio library required
First, check whether MySQL has been installed in the system:Rpm-Qa |
Problem description MySQL databases can be connected, and rails configurations related to MySQL are normal.HoweverProgramWhen accessing the database, the following error message is displayed on the server:Argumenterror (NULL pointer given ):(Eval): 3
1. Modify the MySQL configuration file (/etc/MySQL/My. CNF) and comment out the following lines:# Bind-address = 127.0.0.1
2. Restart the MySQL database. For the Ubuntu system, run the following command:Sudo/etc/init. d/MySQL restart
3. log on
MySQL Remote Access command
Format:Mysql-H host address-u user name-P User Password
Example:
Yanggang @ host :~ $ Mysql-h192.168.1.11-uroot-p123456Error 2003 (hy000): Can't connect to MySQL server on '192. 168.1.11 '(192)
An error
MySQL installation and Service Startup
1: Unable to connect to MySQL on localhost
(1) error: Can't connect to MySQL server on 'localhost' (10061)Translation: cannot connect to MySQL on localhostAnalysis: This indicates that the "localhost"
Registration Code of navicat for MySQL v8.0.27
Navicat is a powerful MySQL database management and development tool. Navicat provides professional developers with a powerful enough cutting-edge tool, but it is still easy to learn for new users.
Recently, I have encountered remote MySQL permissions.
A few people have asked me the same question recently. I installed MySQL and then used Telnet IP 3306. The port then reported bhost '123. 0.0.1 'is not allowed to connect to this MySQL
If you do not want to use MySQL auto-increment, but want to implement the primary key serial number function, you can use the following method to maintain the serial number of multiple tables using a function, simple and practical
1. Create a Data
Use excel_reader for import. It can be downloaded online. Code As follows:Require_once ('reader. php'); // contains the excel_reader file.$ DATA = new spreadsheet_excel_reader (); // create a reader object$ Data-> setoutputencoding ('utf8 ');$ Data->
The followingArticleThis section describes MySQL commands, including common commands of MySQL databases, modifying the actual root password of MySQL databases, and introducing the actual application of grant. The following describes the specific
Creating a website on Windows is a good thing. Due to the popularity of open-source software, Apache + PHP + MySQL has become the first choice for many people. However, compared with the IIS provided by windows, for the first time users build
Download the latest Apache, PHP, and MySQL from various official websites.
1. Apache HTTP Server 2.2.14 Win32 binary including OpenSSLUR: http://httpd.apache.org/download.cgi
2.Php-5.2.11-Win32.zip
URL: http://www.php.net/downloads.php
3.
The database engine you can use depends on how MySQL is compiled during installation. To add a new engine, you must recompile MySQL. By default, MySQL supports three engines: isam, MyISAM, and heap. The other two types of InnoDB and Berkley (bdb)
1. Floor Error
You can use the followingCode
And select 1 from (select count (*), Concat (version (), floor (RAND (0) * 2) X from information_schema.tables group by X) );
And (select count (*) from (select 1 Union select null Union select! 1)
After the windows 7 system is installed, mysql 5.134 cannot be installed when the ROR environment is configured. The problem occurs in the last step. The specific error is as follows:
Unload and reload.
Simply remove all mysql items, including
From http://www.cnblogs.com/pricks
"
MySQL 4.1 Character Set Support has two aspects: Character set and Collation ). The support for character sets is refined to four levels: server, database, table, and connection ). The following sections decode
MySQL supports a large number of column types, which can be divided into three types: Number type, date and time type, and string (character) type. This section first provides an overview of available types, summarizes the storage requirements for
Copyright Notice: During reprinting, please use hyperlinks to indicate the original source and author information of the article and this statementHttp://mobile2008.blogbus.com/logs/28725962.html
Linux (Ubuntu platform)JSPConnect to the MySQL database through JDBC, which is similar to that on the Windows platform. The procedure is as follows:
Download jdbc: mysql-connector-java-5.1.18.tar.gz
Unzip jdbc: tar-zxvf
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