What Does System Catalog Mean?
A system catalog is a group of tables and views that incorporate vital details regarding a database. Every database comprised of a system catalog and the information in the system catalog specifies the framework of the database.
For instance, the data dictionary language (DDL) for every table in the database is saved in the system catalog.
Techopedia Explains System Catalog
- Other objects included in the database
- The database structure itself
- Several other vital pieces of information