---
title: Functions reference
meta:
    description: Explore Tinybird SQL functions for transforming, filtering, aggregating, and analyzing data in Pipes, API Endpoints, and queries.
---

# Functions

Functions in SQL are predefined operations that perform specific tasks on data. They accept input parameters, process them according to defined rules, and return results. Functions help you transform, calculate, or analyze data within your queries.

{% list-alphabetical /%}