# eXtremeSQL Functions

> eXtremeSQL provides a number of SQL functions for performing a variety of operations.

> Please use the following links to view the available SQL functions:

> Unary | Functions requiring a single argument
> Aggregate | Aggregate functions
> High Availability | Functions to manage eXtremeDB High Availability sessions with xSQL
> Transaction Logging | Transaction Logging functions
> DateTime | Date/Time operations using eXtremeSQL
> Miscellaneous | Miscellaneous functions