SQL Guide : Using SQL for database administration : Managing database objects : Catalogs
  
Catalogs
A physical database file may contain more than one logical database. Each logical database is a complete, independent group of database objects, such as tables, indexes, procedures, triggers, and so on. Each logical database is a catalog. Note that a solidDB® catalog is not just limited to indexes (as in the traditional sense of a library card catalog, which serves to locate an item without containing the full contents of the item).
Catalogs allow you to logically partition databases so you can:
Organize your data to meet the needs of your business, users, and, applications.
Specify multiple master or replica databases (by using logical databases) for synchronization within one physical database server. For more details on implementing synchronization in multi-master environments, read “Multi-master synchronization model” in solidDB® Advanced Replication User Guide.
See also
Managing database objects