# tCouchDBInput (deprecated)

Extracts the desired JSON data out of a CouchDB database to make transformation to it, migrates it to another target format, or processes it before inserting it to the same database.

### In this section

* [tCouchDBInput Standard properties](https://help.qlik.com/talend/en-US/components/7.2/couchdb/tcouchdbinput-standard-properties)

**Related concepts**

[Replicating data from the source database to the target database](https://help.qlik.com/talend/en-US/components/7.2/couchdb/tcouchdbinput-tcouchdboutput-tlogrow-replicating-data-from-source-database-to-target-database-standard-component-bigdata-this)