# sequelize

**Repository Path**: mirrors_masato25/sequelize

## Basic Information

- **Project Name**: sequelize
- **Description**: Sequelize is an easy-to-use multi sql dialect ORM for Node.js & io.js. It currently supports MySQL, MariaDB, SQLite, PostgreSQL and MSSQL.
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2021-10-22
- **Last Updated**: 2026-05-17

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Sequelize

[![Build Status](https://travis-ci.org/sequelize/sequelize.svg?branch=master)](https://travis-ci.org/sequelize/sequelize) [![Dependency Status](https://david-dm.org/sequelize/sequelize.svg)](https://david-dm.org/sequelize/sequelize) [![Test Coverage](https://codeclimate.com/github/sequelize/sequelize/badges/coverage.svg)](https://codeclimate.com/github/sequelize/sequelize)
[![Bountysource](https://www.bountysource.com/badge/team?team_id=955&style=bounties_received)](https://www.bountysource.com/teams/sequelize/issues?utm_source=Sequelize&utm_medium=shield&utm_campaign=bounties_received)
[![Flattr this](http://api.flattr.com/button/flattr-badge-large.png)](http://flattr.com/thing/1259407/Sequelize)

Sequelize is a promise-based Node.js/io.js ORM for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server. It features solid transaction support, relations, read replication and more.

[Documentation](http://sequelize.readthedocs.org/en/latest/)

## Installation

`npm install sequelize`

From 3.0.0 and up Sequelize will follow SEMVER. 3.0.0 contains important security fixes so we highly recommend that users upgrade.

If you still use 1.7 please prefer to [Upgrading to 2.0](https://github.com/sequelize/sequelize/wiki/Upgrading-to-2.0) and the changelog between 2.0 and 3.0. 2.1 also has a breaking change.

## Features

- Schema definition
- Schema synchronization/dropping
- 1:1, 1:M & N:M Associations
- Through models
- Promises
- Hooks/callbacks/lifecycle events
- Prefetching/association including
- Transactions
- Migrations
- CLI ([sequelize-cli](https://github.com/sequelize/cli))

## Resources
- [Changelog](https://github.com/sequelize/sequelize/blob/master/changelog.md)
- [Getting Started](http://docs.sequelizejs.com/en/latest/docs/getting-started/)
- [Documentation](http://docs.sequelizejs.com/en/latest/)
- [API Reference](http://docs.sequelizejs.com/en/latest/)
- [Collaboration and pull requests](https://github.com/sequelize/sequelize/blob/master/CONTRIBUTING.md)
- [Roadmap](https://github.com/sequelize/sequelize/issues/2869)
- [Twitter](https://twitter.com/SequelizeJS): @SequelizeJS
- [IRC](http://webchat.freenode.net?channels=sequelizejs): sequelizejs on Freenode
- [Google Groups](https://groups.google.com/forum/#!forum/sequelize)
- [Add-ons & Plugins](https://github.com/sequelize/sequelize/wiki/Add-ons-&-Plugins)