# Deduplicating data

### In this section

* [Deduplicating values in columns](https://help.qlik.com/talend/en-US/data-preparation-user-guide/8.0/deduplicating-values-in-columns)
* [Deduplicating rows](https://help.qlik.com/talend/en-US/data-preparation-user-guide/8.0/deduplicating-rows)