Connection({
host : '127.0.0.1',
user : 'root',
password : 'root123',
port: '3306',
database: 'my_news_test',
});
connection.connect();
var userModSql = 'UPDATE node_user SET name = ,age = WHERE id = ';
var userModSql_Params = ['Hello World',99,7];
//改 up
connection.query(userModSql,userModSql_Params,function (err, result) {
if(err){
console.log('[UPDATE ERROR] - ',err.message);
return;
}
console.log('----------UPDATE-------------');
console.log('UPDATE affectedRows',result.affectedRows);
console.log('******************************');
});
connection.end();
运行结果如下
D:\User\myappejs4>node mysqltest_up.js
----------UPDATE-------------
UPDATE affectedRows 1
******************************
3、查操作
var mysql = require('mysql');
var connection = mysql.createConnection({
host : '127.0.0.1',
user : 'root',
password : 'root123',
port: '3306',
database: 'my_news_test',
});
connection.connect();
var userGetSql = 'SELECT * FROM node_user';
//查 query
connection.query(userGetSql,function (err, result) {
if(err){
console.log('[SELECT ERROR] - ',err.message);
return;
}
console.log('---------------SELECT----------------');
console.log(result);
console.log('$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$');
});
connection.end();
运行的结果如下
D:\User\myappejs4>node mysqltest_query.js
---------------SELECT----------------
[ { id: 1, name: 'admin', age: 32 },
{ id: 2, name: 'dans88', age: 45 },
{ id: 3, name: '张三', age: 35 },
{ id: 4, name: 'ABCDEF', age: 88 },
{ id: 5, name: '李小二', age: 65 },
{ id: 6, name: 'Wilson', age: 55 } ]
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
4、删除操作
var mysql = require('mysql');
var connection = mysql.createConnection({
host : '127.0.0.1',
user : 'root',
password : 'root123',
port: '3306',
database: 'my_news_test',
});
connection.connect();
var userDelSql = 'DELETE FROM node_user WHERE id = 7';
//
connection.query(userDelSql,function (err, result) {
if(err){
console.log('[DELETE ERROR] - ',err.message);
return;
}
console.log('-------------DELETE--------------');
console.log('DELETE affectedRows',result.affectedRows);
console.log('&&&&&&&&&&&&&&&&&');
});
connection.end();
运行的结果如下
D:\User\myappejs4>node mysqltest_del.js
-------------DELETE--------------
DELETE affectedRows 1
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
增、删、改、查操作应会部完成了！
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