ubuntu 8.04建立mysql C开发环境

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：转载时请以超链接形式标明文章原始出处和作者信息及本声明

http://feizf.blogbus.com/logs/30689586.html

安装mysql

kissgnu@kissgnu-desktop:~$
sudo apt-get install mysql-servel mysql-client

下载安装过程中，会提示输入root密码

重新启动mysql服务器:

kissgnu@kissgnu-desktop:~$
sudo /init.d/mysql restart

给普通用户授权操作数据库:

kissgnu@kissgnu-desktop:~$
mysql -u root -p (root登录数据库)

mysql> create database mydb; (创建一个数据库)

mysql> grant all privileges on mydb.* to kissgnu@localhost
identified by 'kissgnu';

mysql> quit;

给特定用户分配数据操作权限的格式是:

grant 权限1,权限2,...权限n on 数据库名称.表名称 to 用户名@用户ip地址 identified by '连接口令';

其中的权限包括：select,insert,update,delete,create,drop,index,alter,grant,references,reload,shutdown,process,file等14个权限.

普通用户操作数据库：

kissgnu@kissgnu-desktop:~$
mysql -u kissgnu -p (kissgnu账户登录)

mysql> show databases; (显示所有的数据库)

+--------------------+

| Database |

+--------------------+

| information_schema |

| mydb |

+--------------------+

2 rows in set (0.00 sec)

接下来的数据库操作见：

http://feizf.blogbus.com/logs/5072906.html

安装C语言编程接口：

kissgnu@kissgnu-desktop:~$
sudo apt-get install libmysqlclient15-dev

相关mysql头文件和库文件安装在/usr/include/mysql/和/usr/lib/mysql目录

kissgnu@kissgnu-desktop:~$
gcc xxx.c -I /usr/include/mysql -L /usr/lib/mysql -lmysqlclient -o xxx

具体的编程接口见sun网站的文档 http://dev.mysql.com/doc/refman/5.0/en/c.html

和一篇文章 http://hi.baidu.com/kangakang203/blog/item/b1c43ffe6d3188345c600828.html

下面是一个例子，假设数据库mydb.pet表的内容如下：

+----------+-------+---------+------+------------+-------+

| name | owner | species | sex | birth | death |

+----------+-------+---------+------+------------+-------+

| Puffball | Diane | hamster | f | 1999-03-30 | NULL |

| hak | jack | euro | m | 2001-03-05 | NULL |

+----------+-------+---------+------+------------+-------+

程序代码：

//demo.c

#include <stdio.h>

#include <mysql.h>

int
main
(int
argc, char
**
argv)

{

MYSQL mysql_conn; /* Connection handle */

MYSQL_RES *
mysql_result; /* Result handle */

MYSQL_ROW mysql_row; /* Row data */

int
f1, f2, num_row, num_col;

if
(mysql_init(&
mysql_conn) !=
NULL
)

{

if
(mysql_real_connect(&
mysql_conn, "localhost"
, "kissgnu"
,

"kissgnu"
, "mydb"
, MYSQL_PORT, NULL
, 0
) !=
NULL
)

{

if
(mysql_query(&
mysql_conn, "select * from pet"
) ==
0
)

{

mysql_result =
mysql_store_result(&
mysql_conn);

num_row =
mysql_num_rows(mysql_result);

/* Get the no. of row */

num_col =
mysql_num_fields(mysql_result);

/* Get the no. of column */

printf("row=%d, col=%d
/n
"
,num_row,num_col);

for
(f1 =
0
; f1 <
num_row; f1++
)

{

mysql_row =
mysql_fetch_row(mysql_result);

for
(f2 =
0
; f2 <
num_col; f2++
)

{

/* Fetch one by one */

printf("[Row %d, Col %d] ==> [%s]
/n
"
, f1, f2, mysql_row[f2]);

}

}

} else

{

(void
) printf("Query fails
/n
"
);

}

} else

{

(void
) printf("Connection fails
/n
"
);

}

} else

{

(void
) printf("Initialization fails
/n
"
);

}

mysql_free_result(mysql_result);

mysql_close(&
mysql_conn);

printf("quit
/n
"
);

return
0
;

}

kissgnu@kissgnu-desktop:~$
gcc demo.c -I /usr/include/mysql -L /usr/lib/mysql -lmysqlclient -o demo

kissgnu@kissgnu-desktop:~/mymysql$
./demo

row=2, col=6

[Row 0, Col 0] ==> [Puffball]

[Row 0, Col 1] ==> [Diane]

[Row 0, Col 2] ==> [hamster]

[Row 0, Col 3] ==> [f]

[Row 0, Col 4] ==> [1999-03-30]

[Row 0, Col 5] ==> [(null)]

[Row 1, Col 0] ==> [hak]

[Row 1, Col 1] ==> [jack]

[Row 1, Col 2] ==> [euro]

[Row 1, Col 3] ==> [m]

[Row 1, Col 4] ==> [2001-03-05]

[Row 1, Col 5] ==> [(null)]

quit