# Tag historian query OEE sample examples request

**URL:** <https://forum.inductiveautomation.com/t/tag-historian-query-oee-sample-examples-request/59502>\
**Category:** Ignition\
**Created:** [May 12, 2022, 1:57pm UTC](https://forum.inductiveautomation.com/t/tag-historian-query-oee-sample-examples-request/59502 "2022-05-12T13:57:20Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![zacharyw.larson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/zacharyw.larson/32/23749_2.png) [@zacharyw.larson](https://forum.inductiveautomation.com/u/zacharyw.larson)\
**Post date:** [May 12, 2022, 1:57pm UTC](https://forum.inductiveautomation.com/t/tag-historian-query-oee-sample-examples-request/59502/1 "2022-05-12T13:57:20Z")

</div>

**is there a good spot to see examples of OEE from Tag Historian queries or pydatasets somewhere I can see?**

I have a running boolean, speed float, infeed float, outfeed float, and a few other things historized.  
I want to know, **is using the tag historian is easier and or better than querying transaction groups?**

**Or am I on the right track with transaction groups and queries/scripts?**  
I can’t tell if I made a smart choice to go to transaction groups to avoid partitions complications, or if I have made things harder on myself because I think I am under experienced/trained in the Ignition tag historian side. I only saw the historian in the inductive university used to populate a power chart I think.

Says I can quickly make tables from the historian, but I don’t see the instructions how.  
[https://docs.inductiveautomation.com/display/DOC80/Tag+Historian](https://docs.inductiveautomation.com/display/DOC80/Tag+Historian)  
I make tables with queries, but I don’t see how to use the historian.

[here](https://docs.inductiveautomation.com/display/DOC81/Tag+Historian#TagHistorian-TagHistorianQuerying)  
ah I see in the 8.1 it says it doesn’t lend itself to direct queries, but direct queries are possible

* * *

Update 9/28/22

Transaction groups worked great.  
Learned a ton since the first post.  
I use scripted historian queries to check the validity of categorical tags though.