Linux under c++/c connection MySQL database

Source: Internet
Author: User

There are two ways to connect a MySQL database with c++/c:
The first type: Connect using ADO

Second: Connect using MySQL's own API function

The first ADO can connect multiple databases, such as MySQL, SQL Server, Oracle, Access, and so on.

The second API approach is only for MySQL database connections, without installing the MYODBC server program.

Here I use the API way to connect MySQL database, relative to the ADO way more efficient. (The first method can be studied later)


Version of Virtual machine: redhat7.0 64bit

Version of database: MySQL5.7 (installed)


1, the extracted files in the corresponding library, the head file copy to the system can find the location

For example: I then installed the database files are in:/usr/local/

Execution: cp/usr/local/include/*/usr/include/

Note that when copying, if the * contains folders, you need to use:

Cp-r/usr/local/include/*/usr/include/

(CP will recursively replicate all subdirectories and files in that directory)

Feel free to write a test file: 1.cpp


# include <iostream>

# include <mysql/mysql.h>


using namespace Std;


int main ()

{

MYSQL * Connection;

Connection = Mysql_init (NULL);


return 0;

}


Then compile the file with g++-o 1 1.cpp-lmysqlcient

Unfortunately, it was also expected that a problem arose:

650) this.width=650; "Src=" Http://s2.51cto.com/wyfs02/M01/89/43/wKioL1gOA-nRQRJWAAAd1p3jhe8107.png-wh_500x0-wm_3 -wmp_4-s_1009283184.png "title=" Qq20161024204810.png "alt=" Wkiol1goa-nrqrjwaaad1p3jhe8107.png-wh_50 "/>

The library file could not be found.

Terminal input command: Mysql_config--libs

650) this.width=650; "Src=" Http://s3.51cto.com/wyfs02/M01/89/45/wKiom1gOBYTACaqoAAAX3czMFw0193.png-wh_500x0-wm_3 -wmp_4-s_3707091375.png "title=" Qq20161024204935.png "alt=" Wkiom1gobytacaqoaaax3czmfw0193.png-wh_50 "/>

Now we compile with the path, execute: g++-l/usr/local/lib/mysql-lmysqlclient-o 1 1.cpp

Compiled by.

Link when the default path is/usr/local/lib, a layer of directories, we will copy the MySQL files under the Lib

Execution: cp/usr/local/lib/mysql/*/usr/local/lib/

In this case, delete the MySQL folder under Lib is not a hindrance.

Perform g++-o 1 1.cpp-lmysqlclient compilation again. 650) this.width=650; "src=" Http://img.baidu.com/hi/jx2/j_0058.gif "alt=" J_0058.gif "/>


This article is from the "11561636" blog, please be sure to keep this source http://11571636.blog.51cto.com/11561636/1865195

Linux under c++/c connection MySQL database

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