# Kibana - the most used room - unique id

**URL:** <https://discuss.elastic.co/t/kibana-the-most-used-room-unique-id/330389>\
**Category:** Kibana\
**Created:** [April 20, 2023, 10:59am UTC](https://discuss.elastic.co/t/kibana-the-most-used-room-unique-id/330389 "2023-04-20T10:59:54Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![TheyCallMeTrinity](https://avatars.discourse-cdn.com/v4/letter/t/50afbb/32.png) [@TheyCallMeTrinity](https://discuss.elastic.co/u/TheyCallMeTrinity)\
**Post date:** [April 20, 2023, 10:59am UTC](https://discuss.elastic.co/t/kibana-the-most-used-room-unique-id/330389/1 "2023-04-20T10:59:54Z")

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Hello,  
I have a question about visualizations using a table - for booking sw. I have data in Kibana that contains room name, user name, time from and to, event time,.... and id. Every booking, confirmation and change comes to my Kibana as a new record which contains everything. I would need to make a table listing the 10 most used and 10 least used rooms by booked time (or a formula to calculate average usage), but I don't know exactly how to select only the most recent record with a unique id each time. Could someone please advise me? Thank you

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**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\
**Post date:** [April 20, 2023, 2:41pm UTC](https://discuss.elastic.co/t/kibana-the-most-used-room-unique-id/330389/2 "2023-04-20T14:41:10Z")

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Hi @TheyCallMeTrinity Welcome to the Commuity!

Although I _think_ I may understand what you are looking for I think perhaps if you showed us several sample "rows" of data and what you want as a result it would be easier for us to help.

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**Author:** ![TheyCallMeTrinity](https://avatars.discourse-cdn.com/v4/letter/t/50afbb/32.png) [@TheyCallMeTrinity](https://discuss.elastic.co/u/TheyCallMeTrinity)\
**Post date:** [May 3, 2023, 11:04am UTC](https://discuss.elastic.co/t/kibana-the-most-used-room-unique-id/330389/3 "2023-05-03T11:04:06Z")

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I finally managed to solve it by transforming

> **[Transform examples | Elasticsearch Guide \[8.7\] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/current/transform-examples.html#example-last-log)**

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [May 31, 2023, 11:04am UTC](https://discuss.elastic.co/t/kibana-the-most-used-room-unique-id/330389/4 "2023-05-31T11:04:22Z")

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