node mysql连接池
描述： 现在项目有一个数据库，要新开一个项目但是这个项目的表要重新放在一个库里，但是还要依赖以前库的表，想问node有无这样的中间件，应该就类似 淘宝的druid连接池一样，求回答啊
4 回复
创建两个连接不行吗？
var connection1 = mysql.createConnection({
host : 'localhost',
user : 'me',
password : 'secret',
database : 'my_db1'
});
var connection2 = mysql.createConnection({
host : 'localhost',
user : 'me',
password : 'secret',
database : 'my_db2'
});
@DominicHjj 是的，
var result1 = connection1.query('sql');
connection2.save('update table set col = ?', [result1.rows.length]);
类似这样，一个connection操作一个库
MySQL offers a changeUser command that allows you to alter the current user and other aspects of the connection without shutting down the underlying socket:
connection.changeUser({user : 'john'}, function(err) {
if (err) throw err;
});
The available options for this feature are:
user: The name of the new user (defaults to the previous one). password: The password of the new user (defaults to the previous one). charset: The new charset (defaults to the previous one). database: The new database (defaults to the previous one).
