> For the complete documentation index, see [llms.txt](https://docs.verbdata.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verbdata.com/data-sources/data-synchronization/synchronization-methods/change-data-capture.md).

# Change Data Capture

Change Data Capture (CDC) synchronization uses the built-in data auditing features supported by most RDBMS systems.  Net changes are queried and applied to the ingestion process each time a synchronization occurs.  This is a highly optimized process given only changed data is queried.  

Change Data Capture requires the underlying RDBMS have the feature enabled prior setting up the synchronization with Verb.

![](/files/aQWqdm1yAxsQ62E5A1Yj)

**Supported Data Sources**

* SQL Databases
  * Microsoft SQL Server
  * MySQL
  * Postgres
  * Supabase