---
title: Flux functions
description: Flux functions allows you to retrieve, transform, process, and output data easily.
menu:
  v2_0_ref:
    name: Flux functions
    parent: Flux query language
weight: 101
---

Flux's functional syntax allows you to retrieve, transform, process, and output data easily.
There is a large library of built-in and importable functions.
You can also [create your own custom functions](/v2.0/query-data/guides/custom-functions)
to perform operations that suit your needs.

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