Järjestelmäkatalogin
Järjestelmäkatalogi, which translates to "system catalog" in English, is a fundamental concept in database management systems. It is a collection of metadata that describes the structure, organization, and contents of a database. This metadata includes information about tables, columns, data types, indexes, constraints, users, privileges, and other database objects.
The system catalog serves as a central repository for all administrative and descriptive information about the
The structure and content of the system catalog can vary between different database systems, such as PostgreSQL,