# Sequelize

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

## Table of Contents
- [Installation](#installation)
- [Features](#features)
- [Responsible disclosure](#responsible-disclosure)
- [Documentation](#documentation)
- [Resources](#resources)

## Installation

```bash
$ npm install --save sequelize

# And one of the following:
$ npm install --save pg pg-hstore
$ npm install --save mysql2
$ npm install --save sqlite3
$ npm install --save tedious # MSSQL
```

Sequelize follows [SEMVER](http://semver.org). Supports Node v4 and above to use ES6 features.

## 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))

## Responsible disclosure
If you have any security issue to report, contact project maintainers privately. You can find contact information [here](https://github.com/sequelize/sequelize/blob/master/CONTACT.md)

## Documentation
- [Contributing](https://github.com/sequelize/sequelize/blob/master/CONTRIBUTING.md)
- [v4 Documentation](http://docs.sequelizejs.com)
- [v3 Documentation](https://sequelize.readthedocs.io/en/v3/)
- [v3 to v4 Upgrade Guide](http://docs.sequelizejs.com/manual/tutorial/upgrade-to-v4.html)

## Resources
- [Changelog](https://github.com/sequelize/sequelize/releases)
- [Slack](http://sequelize-slack.herokuapp.com/)
- [Google Groups](https://groups.google.com/forum/#!forum/sequelize)

### Tools
- [Add-ons & Plugins](https://github.com/sequelize/sequelize/wiki/Add-ons-&-Plugins)
- [Sequelize & TypeScript](https://github.com/RobinBuschmann/sequelize-typescript)

### Learning
- [Getting Started](http://docs.sequelizejs.com/manual/installation/getting-started)
- [Express Example](https://github.com/sequelize/express-example)


### Translations
- [English v4](http://docs.sequelizejs.com) (OFFICIAL)
- [中文文档 v4](https://github.com/demopark/sequelize-docs-Zh-CN) (UNOFFICIAL)



Multi dialect ORM for Node.JS (with Clickhouse dialect). 

sequelize-with-clickhouse

Multi dialect ORM for Node.JS (with Clickhouse dialect)

dmitry.berezhnov

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sequelize-with-clickhouse

Sequelize

Table of Contents

Installation

Features

Responsible disclosure

Documentation

Resources

Tools

Learning

Translations

Keywords

Related posts

sequelize-with-clickhouse

Sequelize

Table of Contents

Installation

Features

Responsible disclosure

Documentation

Resources

Tools

Learning

Translations

Keywords

Related posts

MCP Steering Committee Launches Official MCP Registry in Preview

Introducing Pull Request Stories to Help Security Teams Track Supply Chain Risks