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.