# Sys Schema Stored Procedures

- [create\_synonym\_db](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures/create_synonym_db.md)
- [optimizer\_switch Helper Functions](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures/optimizer_switch-helper-functions.md)
- [ps\_trace\_statement\_digest](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures/ps_trace_statement_digest.md)
- [ps\_trace\_thread](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures/ps_trace_thread.md)
- [ps\_truncate\_all\_tables](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures/ps_truncate_all_tables.md)
- [statement\_performance\_analyzer](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures/statement_performance_analyzer.md)
- [table\_exists](/docs/server/reference/system-tables/sys-schema/sys-schema-stored-procedures/table_exists.md)
