Racquel: An Object/Relational Mapper for Racket

Racquel is an object/relational mapper for Racket. It consists of several components.

• An extension of Racket’s class system that allows mapping of database tables to classes.

• A generator that automatically creates mapped classes using database schema, including joins.

• Persistence functions for selecting, saving, and deleting objects in the database.

• An S-expression based SQL-like query language.

• Functions for serializing objects to and from JSON or XML.

Racquel supports connectivity to all the database systems provided by Racket’s DB package, which are: MySQL, PostgreSQL, SQLite3, and through ODBC: SQL Server, Oracle, and DB/2.

Racquel can be used by installing the package using the Package Manager in DrRacket or from GitHub.