Ubuntu 安装mysql和简单操作

  　　2. apt-get isntall mysql-client
  　　3.  sudo apt-get install libmysqlclient-dev   　　安装过程中会提示设置密码什么的，注意设置了不要忘了，安装完成之后可以使用如下命令来检查是否安装成功：   　　sudo netstat -tap | grep mysql   　　通过上述命令检查之后，如果看到有mysql 的socket处于 listen 状态则表示安装成功。   　　登陆mysql数据库可以通过如下命令：   　　mysql -u root -p    　　-u 表示选择登陆的用户名， -p 表示登陆的用户密码，上面命令输入之后会提示输入密码，此时输入密码就可以登录到mysql。   　　   　　然后通过 show databases; 就可以查看当前的数据库。 　　我们选择 mysql数据库就行下一步操作，使用use mysql 命令，显示当前数据库的表单：show tables  　　 　　 　　写一个简单的程序来访问该数据库，实现 show tables 功能：

#include <mysql/mysql.h><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">
#include </span><stdio.h><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">
#include </span><stdlib.h>
<span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">int</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important"> main() 
{
    MYSQL </span>*<span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">conn;
    MYSQL_RES </span>*<span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">res;
    MYSQL_ROW row;
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">char</span> server[] = <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">localhost</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">;
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">char</span> user[] = <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">root</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">;
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">char</span> password[] = <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">mima</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">;
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">char</span> database[] = <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">mysql</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">;
    
    conn </span>=<span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important"> mysql_init(NULL);
    
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">if</span> (!mysql_real_connect(conn, server,user, password, database, <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,128); font-size:12px!important">0</span>, NULL, <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,128); font-size:12px!important">0</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">)) 
    {
        fprintf(stderr, </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">%s\n</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">, mysql_error(conn));
        exit(</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,128); font-size:12px!important">1</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">);
    }
    
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">if</span> (mysql_query(conn, <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">show tables</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">)) 
    {
        fprintf(stderr, </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">%s\n</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">, mysql_error(conn));
        exit(</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,128); font-size:12px!important">1</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">);
    }
    
    res </span>=<span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important"> mysql_use_result(conn);
    
    printf(</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">MySQL Tables in mysql database:\n</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">);
    
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">while</span> ((row = mysql_fetch_row(res)) !=<span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important"> NULL)
    {
        printf(</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">%s \n</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span>, row[<span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,128); font-size:12px!important">0</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">]);
    }
    
    mysql_free_result(res);
    mysql_close(conn);
    
    printf(</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">finish! \n</span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,0); font-size:12px!important">"</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">);
    </span><span style="margin:0px; padding:0px; line-height:1.8; color:rgb(0,0,255); font-size:12px!important">return</span> <span style="margin:0px; padding:0px; line-height:1.8; color:rgb(128,0,128); font-size:12px!important">0</span><span style="margin:0px; padding:0px; line-height:1.8; font-size:12px!important">;
}</span>

　　编译代码的时候需要链接mysql的库，可以通过如下方式编译：

　　g++ -Wall mysql_test.cpp -o mysql_test -lmsqlclient

　　然后运行编译好的代码：

　　可见结果和使用SQL语句 show tables 是一样的。


http://www.cnblogs.com/zhuyp1015/p/3561470.html

Ubuntu 安装mysql和简单操作

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