# Redundancy analyses

### In this section

* [What are redundancy analyses?](https://help.qlik.com/talend/en-US/studio-user-guide/7.3/what-are-redundancy-analyses)
* [Comparing identical columns in different tables](https://help.qlik.com/talend/en-US/studio-user-guide/7.3/comparing-identical-columns-in-different-tables)
* [Matching primary and foreign keys](https://help.qlik.com/talend/en-US/studio-user-guide/7.3/matching-primary-and-foreign-keys)