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//启动mysql
net start mysql
//登陆
mysql -u root -p
//创建建数据库
create database mydb;
create database test;
//删除数据库
drop database test;
//使用数据库
use mydb;
//创建表
create table mytable（name varchar（20），sex char）;
//显示数据库中所有表
show tables;
//增加一列
alter table mytable add age int;
//插入
insert mytable value（"liu",‘f‘,22）;
insert mytable value（"wang",‘m‘,22）;
insert mytable(name,sex) value("li",‘f‘);
insert mytable value（"zhao",‘m‘,22）;
//删除表中项
delete from mytable where name=”liu“;
delete from mytable where name=”li“;
//更新
update mytable set age = 23 where name = "wang";
//查询
select * from mytable;
JDBC的示例
import java.sql.*;
import com.mysql.jdbc.Driver;
public class JDBCMySql {
public void operateMySql() throws SQLException, ClassNotFoundException{
String driverName ="com.mysql.jdbc.Driver";
String URL = "jdbc:mysql://127.0.0.1:3306/mydb";
String sql = "SELECT * FROM mydb.mytable";
String username = "root";
String password = "";
Connection conn = null;
try{
//加载驱动
Driver.class.forName(driverName);
//建立连接
conn = DriverManager.getConnection(URL,username,password);
//创建statement来执行sql语句
Statement ps = conn.createStatement();
//结果集处理
ResultSet rs = ps.executeQuery(sql);
while(rs.next()) {
System.out.println(rs.getString("name")+","+rs.getString("sex")+","+rs.getInt("age"));
}
}
catch (ClassNotFoundException e) {
e.printStackTrace();
}
catch(SQLException e){
e.printStackTrace();
}
//关闭连接
finally{
if(conn!=null){
try{
conn.close();
}catch(SQLException e){
e.printStackTrace();
}
}
}
}
}建立一个test case来验证一下
import static org.junit.Assert.*;
import java.sql.SQLException;
import org.junit.Before;
import org.junit.Test;
public class JDBCTest {
@Test
public void test() throws ClassNotFoundException, SQLException {
JDBCMySql jm = new JDBCMySql();
jm.operateMySql();
}
}执行结果
转自：http://www.cnblogs.com/sweiqi/p/5936914.html；
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原文地址：http://www.cnblogs.com/orezero/p/5937211.html
