# Information Functions

## In this section

* [AGGREGATOR\_ID](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/aggregator-id.md)
* [CONNECTION\_ID](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/connection-id.md)
* [DATABASE](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/database.md)
* [ESTIMATED\_QUERY\_LEAF\_MEMORY](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/estimated-query-leaf-memory.md)
* [ESTIMATED\_QUERY\_RUNTIME](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/estimated-query-runtime.md)
* [FOUND\_ROWS](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/found-rows.md)
* [LAST\_INSERT\_ID](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/last-insert-id.md)
* [ROW\_COUNT](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/row-count.md)
* [SEGMENT\_ID](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/segment-id.md)
* [USER](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/user.md)

***

Modified at: December 11, 2025

Source: [/db/v9.1/reference/sql-reference/information-functions/](https://docs.singlestore.com/db/v9.1/reference/sql-reference/information-functions/)

(An index of the documentation is available at /llms.txt)