> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/system-tables/sys-schema.md).

# Sys Schema

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[Sys Schema sys\_config Table](/docs/server/reference/system-tables/sys-schema/sys-schema-sys_config-table.md)
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The sys\_config table holds persistent configuration options for the Sys Schema, stored using the Aria storage engine to maintain settings across restarts.
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[Sys Schema Stored Functions](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-functions.md)
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Explore sys\_schema stored functions in MariaDB Server. These functions simplify querying performance and configuration data, offering a user-friendly interface for database diagnostics.
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[Sys Schema Stored Procedures](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures.md)
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Explore sys\_schema stored procedures in MariaDB Server. These procedures simplify complex administrative and diagnostic tasks, offering streamlined access to performance and configuration insights.
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[Sys Schema Views](/docs/server/reference/system-tables/sys-schema/sys-schema-views.md)
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Explore sys\_schema views in MariaDB Server. These views offer simplified, aggregated insights into server performance, I/O, and memory usage, making diagnostics and monitoring easier.
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