Terminology

Sequelize vs sequelize

In our documentation, Sequelize refers to the library itself while the lowercase sequelize refers to an instance of Sequelize. This is the recommended convention, and it will be followed throughout the documentation.

Tables, Models & Entities

In Sequelize, Models are the JavaScript classes that represent Database Tables.

Some ORM call these Entities. By convention, they are called Models in Sequelize.

Learn more about Models in Defining a Model

Attributes & Columns

An attribute is the JavaScript representation of a Table Column.

In this documentation, if column is used, it references the SQL column. If attribute is used, it references the JavaScript representation of a column.

Learn more about Attributes in Defining a Model

Associations & Relationships

An association is the JavaScript representation of a Table Relationship.

See Associations for more information.