Understanding the SYSCAT Schema | Generated by AI
SYSCAT stands for System Catalog in IBM DB2. It’s a schema that holds read-only views built on top of the base system catalog tables (in the SYSIBM schema). These views offer a more user-friendly and standardized way to query metadata about database objects, such as tables, columns, indexes, and routines, while keeping the underlying data normalized and protected.
For example, SYSCAT.TABLES is a view that provides details on tables, including schema, name, owner, type, and row count, without exposing the raw SYSIBM.SYSTABLES table directly.
For more details, check the IBM DB2 documentation on catalog views.