> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ocient.com/llms.txt
> Use this file to discover all available pages before exploring further.

# System Catalog Reference

export const Ocient = "Ocient®";

The {Ocient} 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](/system-catalog)  — Listing and description of all system catalog tables included in the system.
* [Information Schema](/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](/discover-insights-from-system-catalog-tables).