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@zidnigz/fs-db

v2.1.4

Published

Contoh penggunaan **@zidnigz/fs-db**, sebuah database ringan berbasis file untuk Node.js yang menggunakan sintaks query mirip SQL.

Downloads

118

Readme

SimpleDB Example

Contoh penggunaan @zidnigz/fs-db, sebuah database ringan berbasis file untuk Node.js yang menggunakan sintaks query mirip SQL.

Package ini memungkinkan kamu melakukan operasi INSERT, SELECT, UPDATE, agregasi, filtering, sorting, dan pagination tanpa perlu database server seperti MySQL atau PostgreSQL.


Instalasi

Install package menggunakan npm:

npm install @zidnigz/fs-db

Inisialisasi Database

Import package dan buat instance database.

const SimpleDB = require('@zidnigz/fs-db');
const db = new SimpleDB('./my_database');

Parameter ./my_database adalah folder tempat database disimpan. Jika folder belum ada, biasanya akan dibuat otomatis.


Contoh Penggunaan

1. Multiple Insert

Menambahkan beberapa data sekaligus ke tabel users.

db.query(
  "INSERT INTO users (name, age, role) VALUES ('Alice', 25, 'admin'), ('Bob', 19, 'user'), ('Charlie', 30, 'user')"
);

2. Complex Select

Query dengan kondisi, alias kolom, pengurutan, dan pembatasan jumlah data.

const users = db.query(
  "SELECT name AS nama, age AS umur FROM users WHERE age >= 20 OR role = 'admin' ORDER BY age DESC LIMIT 2 OFFSET 0"
);

console.log(users);

Fitur yang digunakan pada query ini:

  • SELECT
  • AS (alias kolom)
  • WHERE
  • OR
  • ORDER BY
  • LIMIT
  • OFFSET

3. Agregasi Data

Menghitung jumlah user dan rata-rata umur.

const stats = db.query(
  "SELECT COUNT(*) AS total_user, AVG(age) AS rata_umur FROM users WHERE role != 'admin'"
);

console.log(stats);

Fungsi agregasi yang tersedia:

  • COUNT()
  • AVG()

4. Update Data dengan Kondisi Kompleks

Memperbarui data berdasarkan kondisi tertentu.

db.query(
  "UPDATE users SET role = 'superadmin' WHERE name LIKE '%Ali%' AND age > 20"
);

Fitur yang digunakan:

  • UPDATE
  • SET
  • WHERE
  • LIKE
  • AND

Contoh Output

[
  { nama: 'Charlie', umur: 30 },
  { nama: 'Alice', umur: 25 }
]

{
  total_user: 2,
  rata_umur: 24.5
}

Fitur Utama

  • Database berbasis file system
  • Query menggunakan SQL-like syntax
  • Mendukung operasi dasar database
  • Tidak membutuhkan server database
  • Mudah digunakan untuk project kecil, bot, atau prototype

Contoh Penggunaan Lengkap

const SimpleDB = require('@zidnigz/fs-db');
const db = new SimpleDB('./my_database');

// Insert multiple data
db.query("INSERT INTO users (name, age, role) VALUES ('Alice', 25, 'admin'), ('Bob', 19, 'user'), ('Charlie', 30, 'user')");

// Select data
const users = db.query("SELECT name AS nama, age AS umur FROM users WHERE age >= 20 OR role = 'admin' ORDER BY age DESC LIMIT 2 OFFSET 0");
console.log(users);

// Aggregation
const stats = db.query("SELECT COUNT(*) AS total_user, AVG(age) AS rata_umur FROM users WHERE role != 'admin'");
console.log(stats);

// Update data
db.query("UPDATE users SET role = 'superadmin' WHERE name LIKE '%Ali%' AND age > 20");

License

MIT License