Ubuntu 16.04可以通过以下的命令来安装Mysql:
sudo apt-get install mysql-server
因为上述的命令会安装mysql-client,所以我们并不需要再次安装mysql-client,安装过程中会提示设置root用户的密码,设置完成后等待自动完成就好.
启动mysql服务和关闭mysql服务:
service mysql start
service mysql stop
进入mysql shell界面:
mysql -u user -p
查询当前数据库
show databases;
选择使用数据库
use database;
查看当前数据库的表单
show tables;
一个简单的C++程序来代替show tables功能:
#include <mysql/mysql.h>
#include <cstdio>
#include <iostream>
#include <cstdlib>
using namespace std;
int main()
{
MYSQL *connect;
MYSQL_RES *res;
MYSQL_ROW row;
int cnt = 0;
char server[] = "localhost";
char user[] = "root";
char db[] = "mysql";
connect = mysql_init(NULL);
if(!mysql_real_connect(connect,server,user,"cxsyscqm7606",db,0,NULL,0)) {
cout << "connect error" << endl;
exit(-1);
}
if(mysql_query(connect,"show tables")) {
cout << "show error" << endl;
exit(-1);
}
res = mysql_use_result(connect);
cout << "result: " << endl;
while((row = mysql_fetch_row(res)) != NULL)
{
cnt++;
cout << row[0] << endl;
}
cout << "count = " << cnt << endl;
cout << "finish" << endl;
mysql_free_result(res);
mysql_close(connect);
return 0;
}
值得注意的是,在编译代码的时候需要链接mysql库,可以通过以下命令进行编译:
g++ -Wall test.cpp -o test -lmysqlclient
如果编译遇到:
test.cpp:1:25: fatal error: mysql/mysql.h: No such file or directory compilation terminated.
可以通过以下命令来解决问题:
sudo apt-get install libmysql++-dev
文章参考了:
Linux公社安装Mysql教程
Ubuntu安装Mysql教程