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better-sqlite3

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better-sqlite3

The fastest and simplest library for SQLite3 in Node.js.

  • 7.5.0
  • Source
  • npm
  • Socket score

Version published
Weekly downloads
753K
increased by3.19%
Maintainers
1
Weekly downloads
 
Created

What is better-sqlite3?

better-sqlite3 is a fast and simple SQLite3 library for Node.js applications. It provides a synchronous API for interacting with SQLite databases, making it easier to write and maintain code. The library is designed to be efficient and easy to use, with a focus on performance and simplicity.

What are better-sqlite3's main functionalities?

Database Connection

This feature allows you to establish a connection to an SQLite database. The `Database` constructor takes the path to the database file as an argument.

const Database = require('better-sqlite3');
const db = new Database('my-database.db');

Executing SQL Statements

This feature allows you to prepare and execute SQL statements. The `prepare` method creates a prepared statement, and the `all` method executes the statement and returns all matching rows.

const stmt = db.prepare('SELECT * FROM users WHERE age > ?');
const users = stmt.all(18);

Inserting Data

This feature allows you to insert data into the database. The `run` method executes the prepared statement with the provided parameters.

const insert = db.prepare('INSERT INTO users (name, age) VALUES (?, ?)');
const info = insert.run('John Doe', 30);

Transaction Management

This feature allows you to manage transactions. The `transaction` method creates a transaction that can execute multiple statements atomically.

const insert = db.prepare('INSERT INTO users (name, age) VALUES (?, ?)');
const insertMany = db.transaction((users) => {
  for (const user of users) insert.run(user.name, user.age);
});
insertMany([{ name: 'Alice', age: 25 }, { name: 'Bob', age: 35 }]);

Custom Functions

This feature allows you to define custom SQL functions. The `function` method registers a new function that can be used in SQL statements.

db.function('add', (a, b) => a + b);
const result = db.prepare('SELECT add(2, 3)').get();

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Package last updated on 19 Jan 2022

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