sequelize

Create a model with 3 fields and a migration file

$ sequelize model:generate --name [table_name] --attributes [field1:integer,field2:string,field3:boolean]

$ sequelize db:migrate

$ sequelize db:migrate:undo:all

$ sequelize seed:generate --name [seed_filename]

$ sequelize db:seed:all

sequelize [options]

db:create
    Creates the database specified in your configuration.

db:drop
    Drops the database specified in your configuration.

db:migrate
    Runs pending database migrations.

db:migrate:undo
    Undoes the last applied migration.

db:migrate:undo:all
    Undoes all applied migrations.

db:seed
    Runs specified seeders.

db:seed:undo
    Undoes the last applied seeder.

db:seed:undo:all
    Undoes all applied seeders.

init
    Initializes a new Sequelize project with the necessary configuration files (config, models, migrations, seeders).

init:config
    Generates the config.json file.

init:models
    Generates the models directory.

init:migrations
    Generates the migrations directory.

init:seeders
    Generates the seeders directory.

model:create --name --attributes
    Generates a model with specified attributes.

migration:create --name
    Generates a migration file.

seeder:create --name
    Generates a seeder file.

--help
    Displays help information.

--version
    Displays the version number.

The `sequelize` command provides a command-line interface (CLI) tool for managing Sequelize-based projects. Sequelize is a Node.js ORM (Object-Relational Mapper) for Postgres, MySQL, SQLite and MSSQL. The `sequelize` CLI allows you to easily generate models, migrations, seeders, and other files related to your database schema. It simplifies database development tasks such as creating database schemas, migrating between schema versions, and seeding databases with initial data. It facilitates generating boilerplate code that promotes standardized project structure and best practices.

Using this tool, developers can create and manage their databases directly from the terminal using easy to understand commands.

The `sequelize` CLI relies on having a properly configured `config.json` file in your project. Ensure that your database credentials (host, username, password, database name) are correctly set up in this file. Also you need to install sequelize-cli to use this tool.

Without the correct setup it may produce errors or be unusable.

The Sequelize CLI typically relies on a `config.json` or `config.js` file in your project's root directory to define database connection settings (host, username, password, database, dialect). Ensure that this file is correctly configured with the appropriate settings for your development, testing, and production environments.

Sequelize supports various database dialects, including Postgres, MySQL, SQLite, and MSSQL. Ensure that you have the corresponding database driver installed for the database you are using (e.g., `pg` for Postgres, `mysql2` for MySQL, `sqlite3` for SQLite, `tedious` for MSSQL).

The `sequelize` CLI evolved alongside the Sequelize ORM to provide developers with a convenient way to manage database schemas and migrations. Over time, new commands and features have been added to streamline database development workflows. It is actively maintained, with updates and improvements being regularly released.