@types/sqlite3

What is @types/sqlite3?

@types/sqlite3 provides TypeScript type definitions for the sqlite3 package, which is a library for interacting with SQLite databases in Node.js. These type definitions help developers write TypeScript code with proper type checking and IntelliSense support when using sqlite3.

What are @types/sqlite3's main functionalities?

Database Connection

This feature allows you to create a new SQLite database connection. The example demonstrates how to create an in-memory database.

const sqlite3 = require('sqlite3').verbose();
const db = new sqlite3.Database(':memory:');

Executing SQL Queries

This feature allows you to execute SQL queries. The example demonstrates creating a table, inserting data, and querying the data.

db.serialize(() => {
  db.run('CREATE TABLE lorem (info TEXT)');
  const stmt = db.prepare('INSERT INTO lorem VALUES (?)');
  for (let i = 0; i < 10; i++) {
    stmt.run('Ipsum ' + i);
  }
  stmt.finalize();
  db.each('SELECT rowid AS id, info FROM lorem', (err, row) => {
    console.log(row.id + ': ' + row.info);
  });
});

Error Handling

This feature allows you to handle errors that occur during SQL execution. The example demonstrates how to catch and log errors when trying to insert data into a non-existing table.

db.run('INSERT INTO non_existing_table VALUES (?)', ['test'], (err) => {
  if (err) {
    console.error('Error occurred:', err.message);
  }
});

Closing the Database

This feature allows you to close the database connection. The example demonstrates how to close the database and handle any potential errors.

db.close((err) => {
  if (err) {
    console.error('Error closing the database:', err.message);
  } else {
    console.log('Database closed successfully');
  }
});

Other packages similar to @types/sqlite3

@types/mysql

@types/mysql provides TypeScript type definitions for the mysql package, which is used for interacting with MySQL databases in Node.js. It offers similar functionalities for connecting to a database, executing queries, and handling errors, but it is specific to MySQL databases.

@types/pg

@types/pg provides TypeScript type definitions for the pg package, which is used for interacting with PostgreSQL databases in Node.js. Like @types/sqlite3, it offers functionalities for database connection, query execution, and error handling, but it is tailored for PostgreSQL databases.

@types/mongodb

@types/mongodb provides TypeScript type definitions for the mongodb package, which is used for interacting with MongoDB databases in Node.js. While it also offers database connection and query execution functionalities, it is designed for a NoSQL database, which differs from the SQL-based SQLite.

README

Installation

npm install --save @types/sqlite3

Summary

This package contains type definitions for sqlite3 (https://github.com/mapbox/node-sqlite3).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/sqlite3.

Additional Details

• Last updated: Tue, 07 Nov 2023 15:11:36 GMT
• Dependencies: @types/node

Credits

These definitions were written by Nick Malaguti, and Sumant Manne.