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<!DOCTYPE HTML>
<html lang="id" >
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>Koneksi MySQL | Pengenalan Node.js</title>
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<div class="book" data-level="10.3" data-chapter-title="Koneksi MySQL" data-filepath="todatauri/koneksi_mysql.md" data-basepath=".." data-revision="Fri Nov 20 2015 03:32:10 GMT+0700 (WIB)">
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<li class="chapter " data-level="0" data-path="index.html">
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Introduction
</a>
</li>
<li class="chapter " data-level="1" data-path="nodejs/index.html">
<a href="../nodejs/index.html">
<i class="fa fa-check"></i>
<b>1.</b>
Node.js
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<a href="../nodejs/javascript_di_server.html">
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<b>1.1.</b>
JavaScript Di Server
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<a href="../nodejs/nodejs_show.html">
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<b>1.2.</b>
Node.js In Action
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<a href="../asinkron_io_&_event/index.html">
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<b>2.</b>
Asinkron I/O & Event
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<b>2.1.</b>
PHP & Server HTTP Apache
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<li class="chapter " data-level="2.2" data-path="asinkron_io_&_event/javascript_&_nodejs.html">
<a href="../asinkron_io_&_event/javascript_&_nodejs.html">
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<b>2.2.</b>
Javascript & Node.js
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<li class="chapter " data-level="3" data-path="server_http_dasar/index.html">
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<b>3.</b>
Server HTTP Dasar
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<li class="chapter " data-level="3.1" data-path="server_http_dasar/menjalankan_server.html">
<a href="../server_http_dasar/menjalankan_server.html">
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<b>3.1.</b>
Menjalankan Server
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</ul>
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<li class="chapter " data-level="4" data-path="server_file_statis/index.html">
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<b>4.</b>
Server File Statis
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<a href="../pemrosesan_data_form_html/index.html">
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<b>5.</b>
Pemrosesan Data Form HTML
</a>
<ul class="articles">
<li class="chapter " data-level="5.1" data-path="pemrosesan_data_form_html/url_encoded.html">
<a href="../pemrosesan_data_form_html/url_encoded.html">
<i class="fa fa-check"></i>
<b>5.1.</b>
URL Encode
</a>
</li>
<li class="chapter " data-level="5.2" data-path="pemrosesan_data_form_html/multipart.html">
<a href="../pemrosesan_data_form_html/multipart.html">
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<b>5.2.</b>
Multipart Data
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="6" data-path="npm/index.html">
<a href="../npm/index.html">
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<b>6.</b>
Module npm
</a>
<ul class="articles">
<li class="chapter " data-level="6.1" data-path="npm/npm.html">
<a href="../npm/npm.html">
<i class="fa fa-check"></i>
<b>6.1.</b>
Konsep
</a>
</li>
<li class="chapter " data-level="6.2" data-path="npm/konsep.html">
<a href="../npm/konsep.html">
<i class="fa fa-check"></i>
<b>6.2.</b>
Paket npm
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="7" data-path="expressjs/index.html">
<a href="../expressjs/index.html">
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<b>7.</b>
ExpressJS
</a>
<ul class="articles">
<li class="chapter " data-level="7.1" data-path="expressjs/server.html">
<a href="../expressjs/server.html">
<i class="fa fa-check"></i>
<b>7.1.</b>
Server File
</a>
<ul class="articles">
<li class="chapter " data-level="7.1.1" data-path="expressjs/middleware.html">
<a href="../expressjs/middleware.html">
<i class="fa fa-check"></i>
<b>7.1.1.</b>
Middleware
</a>
</li>
<li class="chapter " data-level="7.1.2" data-path="expressjs/akses_server.html">
<a href="../expressjs/akses_server.html">
<i class="fa fa-check"></i>
<b>7.1.2.</b>
Akses Server
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="7.2" data-path="expressjs/server_rest.html">
<a href="../expressjs/server_rest.html">
<i class="fa fa-check"></i>
<b>7.2.</b>
Server REST
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="8" data-path="database/index.html">
<a href="../database/index.html">
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<b>8.</b>
Database
</a>
<ul class="articles">
<li class="chapter " data-level="8.1" data-path="database/sqlite.html">
<a href="../database/sqlite.html">
<i class="fa fa-check"></i>
<b>8.1.</b>
SQLite
</a>
<ul class="articles">
<li class="chapter " data-level="8.1.1" data-path="database/node-sqlite3.html">
<a href="../database/node-sqlite3.html">
<i class="fa fa-check"></i>
<b>8.1.1.</b>
Node Sqlite3
</a>
</li>
<li class="chapter " data-level="8.1.2" data-path="database/enkripsi.html">
<a href="../database/enkripsi.html">
<i class="fa fa-check"></i>
<b>8.1.2.</b>
Enkripsi
</a>
<ul class="articles">
<li class="chapter " data-level="8.1.2.1" data-path="database/sqlchiper.html">
<a href="../database/sqlchiper.html">
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<b>8.1.2.1.</b>
sqlcipher
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="8.2" data-path="database/mysql.html">
<a href="../database/mysql.html">
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<b>8.2.</b>
MySQL
</a>
<ul class="articles">
<li class="chapter " data-level="8.2.1" data-path="database/node_mysql.html">
<a href="../database/node_mysql.html">
<i class="fa fa-check"></i>
<b>8.2.1.</b>
Node MySQL
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="8.3" data-path="database/mongodb.html">
<a href="../database/mongodb.html">
<i class="fa fa-check"></i>
<b>8.3.</b>
MongoDB
</a>
<ul class="articles">
<li class="chapter " data-level="8.3.1" data-path="database/node_mongodb.html">
<a href="../database/node_mongodb.html">
<i class="fa fa-check"></i>
<b>8.3.1.</b>
Node MongoDB
</a>
</li>
<li class="chapter " data-level="8.3.2" data-path="database/mongoose.html">
<a href="../database/mongoose.html">
<i class="fa fa-check"></i>
<b>8.3.2.</b>
Mongoose
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="9" data-path="testing/index.html">
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<b>9.</b>
Testing
</a>
<ul class="articles">
<li class="chapter " data-level="9.1" data-path="testing/rest_testing.html">
<a href="../testing/rest_testing.html">
<i class="fa fa-check"></i>
<b>9.1.</b>
REST
</a>
</li>
<li class="chapter " data-level="9.2" data-path="testing/automasi.html">
<a href="../testing/automasi.html">
<i class="fa fa-check"></i>
<b>9.2.</b>
Automasi
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="10" data-path="todatauri/todatauri.html">
<a href="../todatauri/todatauri.html">
<i class="fa fa-check"></i>
<b>10.</b>
To Data URI
</a>
<ul class="articles">
<li class="chapter " data-level="10.1" data-path="todatauri/penggunaan.html">
<a href="../todatauri/penggunaan.html">
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<b>10.1.</b>
Penggunaan
</a>
</li>
<li class="chapter " data-level="10.2" data-path="todatauri/konverter_gambar_png_ke_data_uri.html">
<a href="../todatauri/konverter_gambar_png_ke_data_uri.html">
<i class="fa fa-check"></i>
<b>10.2.</b>
todatauri.js
</a>
</li>
<li class="chapter active" data-level="10.3" data-path="todatauri/koneksi_mysql.html">
<a href="../todatauri/koneksi_mysql.html">
<i class="fa fa-check"></i>
<b>10.3.</b>
Koneksi MySQL
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="11" data-path="person_rest_api/index.html">
<a href="../person_rest_api/index.html">
<i class="fa fa-check"></i>
<b>11.</b>
Person REST API
</a>
<ul class="articles">
<li class="chapter " data-level="11.1" data-path="person_rest_api/inisialisasi.html">
<a href="../person_rest_api/inisialisasi.html">
<i class="fa fa-check"></i>
<b>11.1.</b>
Cara Kerja
</a>
</li>
<li class="chapter " data-level="11.2" data-path="person_rest_api/kode.html">
<a href="../person_rest_api/kode.html">
<i class="fa fa-check"></i>
<b>11.2.</b>
Server
</a>
</li>
<li class="chapter " data-level="11.3" data-path="person_rest_api/testing.html">
<a href="../person_rest_api/testing.html">
<i class="fa fa-check"></i>
<b>11.3.</b>
Pengetesan
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="12" data-path="image_uploader/index.html">
<a href="../image_uploader/index.html">
<i class="fa fa-check"></i>
<b>12.</b>
Image Uploader
</a>
</li>
<li class="chapter " data-level="13" data-path="es6/memakai_es6.html">
<a href="../es6/memakai_es6.html">
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<b>13.</b>
Memakai ES6
</a>
</li>
<li class="chapter " data-level="14" data-path="pengarang/index.html">
<a href="../pengarang/index.html">
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<b>14.</b>
Tentang Pengarang
</a>
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<h1 id="koneksi-mysql">Koneksi MySQL</h1>
<p>Untuk koneksi ke database MySQL cukup mudah seperti yang telah dibahas pada bab sebelumnya tentang Node dan Database MySQL.</p>
<pre><code>/**
* todatauri.js dengan Mysql
*
*
* WTFPL
* Equan Pr.
* 2015
*/
var Util = require('./todatauri.js');
var mysql = require('mysql');
var connection = mysql.createConnection({
host: 'localhost',
user: 'root',
password: ''
});
connection.connect(function (err) {
if (err) {
console.log(err);
} else {
console.log('Koneksi MySQL dengan id ' + connection.threadId);
}
});
var create_database = 'CREATE DATABASE IF NOT EXISTS data_uri ';
var create_table = "CREATE TABLE IF NOT EXISTS data_uri.images (id INT AUTO_INCREMENT PRIMARY KEY, data TEXT)";
connection.query(create_database, function (err, res) {
if (err) {
console.log(err);
} else {
console.log('Create database data_uri [ok]');
connection.query(create_table, function (err, result) {
if (err) {
console.error(err);
} else {
console.log('Create table images [ok]');
main(process);
}
})
}
});
function insertData(data, connection) {
connection.query('INSERT INTO data_uri.images SET ?', { data: data }, function (err, res) {
if(err) {
console.log(err);
} else {
console.log(res);
closeConnection();
}
})
};
function showData(connection) {
connection.query('SELECT * FROM data_uri.images', function(err, result){
if(err) {
console.log(err);
} else {
console.log('\n\nMySQL Database\n============================\n');
result.forEach(function(element, index){
console.log('id \u2192', element.id);
console.log('image \u2192', element.data);
});
closeConnection();
}
})
}
function main(process) {
if (process.argv[2]) {
if (process.argv[2].toLowerCase().trim() == 'show') {
showData(connection);
} else {
Util.toDataURI(process.argv[2], function (err, data) {
if (!err) {
insertData(data, connection);
}
})
}
} else {
Util.toDataURI(null, function (err, data) {
if (!err) {
console.log(data);
closeConnection();
}
});
}
}
function closeConnection(){
connection.end(function(err){
if(err) {
console.log(err);
}
});
}
</code></pre><p>Parsing argumen dilakukan oleh <code>process</code> yang merupakan object global di <a href="http://nodejs.org/api/process.html" target="_blank">Node.js</a>. Perlu diingat bahwa JavaScript memulai array dengan index 0 sehingga argumen yang diperlukan berada pada index 2</p>
<pre><code>process.argv[2]
</code></pre><p>Jika anda berada pada platform UNIX atau GNU LINUX script diatas bisa dirubah untuk <code>self executable</code> dengan menambahkan script berikut pada line 1 di file <code>tdi.js</code></p>
<pre><code>#!/usr/bin/env node
</code></pre><p>Kemudian untuk menjalankannya cukup mudah seperti berikut</p>
<pre><code>$ ./tdi.js
</code></pre><p>Script <code>tdi.js</code> sebenarnya cukup sederhana dan cukup untuk melakukan tugas yang di inginkan. Mungkin kelihatan agak rumit karena banyak <code>callback</code> di sana sini tetapi kalau anda sudah terbiasa memprogram secara asinkron pasti mudah sekali untuk melihat kode diatas.</p>
<p>Penulis sarankan untuk ke depannya jika diinginkan penulisan tanpa <code>callback</code> bisa dipelajari tentang <code>Promises</code> JavaScript ES6.</p>
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