> 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/incremental-synchronization.md).

# Incremental Synchronization

Incremental synchronization uses a user-specified field in your data source to track data over time.  Fields must be in the form of a primary key, numeric, or date/time value.  Each time an incremental synchronization occurs, only new data is ingested.  New data includes those records with values larger than the highest order record from the previous synchronization.

![](/files/pDvjEbEDovqVSxfi6yNl)

**Supported Data Sources**

* SQL Databases
* NoSQL Databases
* APIs