var mysql = require('mysql');

//选择数据库和表
var TEST_DATABASE = 'nodetry1';
var TEST_TABLE = 'table2';

var connection = mysql.createConnection({
  host: 'localhost',
  user: 'root',
  password: '123456'
});

//连接数据库
connection.connect();

//选择查询的数据库
connection.query("use " + TEST_DATABASE);

// 增加
connection.query('insert into '+ TEST_TABLE +' (id,name,age) values (12, "二次添加会报错" , 77)');

// 删除
connection.query('delete from '+ TEST_TABLE +' where name = "sony"');

// 修改
connection.query('update '+ TEST_TABLE +' set name = "jiying.bao" where id = 5');

//查询
connection.query('SELECT * from '+ TEST_TABLE , function(err, rows) {
  if(err) throw err;
  console.log("SELECT ==> ");
  for(var i in rows) {
    console.log(rows[i]);
  }
});

//关闭数据库连接
connection.end();