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The System Catalog comprises a set of virtual tables and views. Together, these present administrators with metadata that describes the state of the data stored in the system, activity on the system, and the configuration of the system. The information_schema schema contains views that present information joined from multiple system catalog tables.
  • System Catalog — Listing and description of all system catalog tables included in the system.
  • Information Schema — Listing and description of all information_schema schema views and SHOW commands defined by default.
To explore the system catalog tables, use sample queries for various topics as described in Discover Insights From System Catalog Tables.
Last modified on May 27, 2026