Ingres Star catalogs consist of database tables that describe the objects in the distributed database. They are maintained to keep track of these objects. They are primarily for Ingres Star’s own use, but you can use them in programs and applications to access (but not update) information about the distributed database.

Each catalog has columns—or attributes—with specific database management functions and rows that reflect different aspects of the database.

There are three types of Ingres Star catalogs: