Updating Data

In this section of the documentation, you will learn how you can update your data.

Page	Description
Working with updates	Provides an overview of the differences in updating data between ClickHouse and OLTP databases, as well as the various methods available to do so in ClickHouse.
On-the-fly Mutations	Apply mutations to data without rewriting parts on disk.
Working with ReplacingMergeTree	Learn how to update using the ReplacingMergeTree.

Last modified on July 23, 2026