Home Database Mysql Tutorial Linux系统下C/C++开发MySQL数据库应用

Linux系统下C/C++开发MySQL数据库应用

Jun 07, 2016 pm 04:51 PM
c++

一、Linux下挂载光驱:挂载光驱 mount -t iso9660 /dev/cdrom /mnt/cdrom卸载光驱 umount /dev/cdrom弹出光驱 eject推进光驱 eje

一、Linux下挂载光驱:

挂载光驱 mount -t iso9660 /dev/cdrom /mnt/cdrom

卸载光驱 umount /dev/cdrom

弹出光驱 eject

推进光驱 eject –t

二、运行MySQL只需安装:

mysql-server-3.23.54a-11.i386.rpm

mysql-3.23.54a-11.i386.rpm

开发MySQL需要特别安装开发包:

mysql-devel-3.23.54a-11.i386.rpm


三、Linux程序包的安装:

rpm –ivh 要安装的软件包

rpm –qa | grep 特定的软件包

rpm –e 要删除的软件包


四、Linux中Mysql服务的启动:

/etc/rc.d/init.d/mysqld status 查看当前的mysql服务状态

service mysqld start 启动mysql服务

mysql –u root –p pass 使用用户名root和密码pass连接mysql数据库


五、Linux C/C++开发MySQL程序结构

头文件:#include

编译选项:

gcc -o server server.c –I /usr/include/mysql –L /usr/lib/mysql –l mysqlclient –lz –lm

连接过程:

Step 1:连接数据库

建立MYSQL mysql;

mysql_init(&mysql);初始化

mysql_real_connect(&mysql,”hostname”,”username”,”password”,”database”,0,NULL,0);

Step 2:执行SQL语句

mysql_real_query(&mysql,SQL);

Step 3:获取查询结果

建立MYSQL_RES结构 *res;

res = mysql_store_result(&mysql);

Step 4:获取查询结果每一行,并进行相应处理

mysql_fetch_row(res);

mysql_num_fields(res); 获取结果的字段数

printf(“%s\n”,row[index]);

Step 5:释放资源

mysql_free_result(res);

mysql_close(&mysql); 

linux

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