Racquel: An Object/Relational Mapper for Racket🔗ℹ

Scott Brown

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.

(require racquel)

package: racquel

1 Data Class Mapping

2 Automated Data Class Generation

3 Data Object Persistence and Restoration

4 RQL: The Racquel Query Language

5 Data Object Serialization

1	Data Class Mapping
2	Automated Data Class Generation
3	Data Object Persistence and Restoration
4	RQL: The Racquel Query Language
5	Data Object Serialization