# How to query Watson IoT historical data

**URL:** <https://discourse.nodered.org/t/how-to-query-watson-iot-historical-data/7483>\
**Category:** General\
**Created:** [1 February 2019 14:43 UTC](https://discourse.nodered.org/t/how-to-query-watson-iot-historical-data/7483 "2019-02-01T14:43:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![KenioCarvalho](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/keniocarvalho/32/5620_2.png) [@KenioCarvalho](https://discourse.nodered.org/u/KenioCarvalho)\
**Post date:** [1 February 2019 14:43 UTC](https://discourse.nodered.org/t/how-to-query-watson-iot-historical-data/7483/1 "2019-02-01T14:43:38Z")

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I setup Watson IoT to send data to cloudant DB. Cloudant create a new database for every week. How can i query all databases for device events using Cloudant Node?