# Tag history for Strings

**URL:** <https://forum.inductiveautomation.com/t/tag-history-for-strings/83286>\
**Category:** Ignition\
**Tags:** vision\
**Created:** [December 18, 2023, 8:58pm UTC](https://forum.inductiveautomation.com/t/tag-history-for-strings/83286 "2023-12-18T20:58:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Joe\_Haase](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Joe\_Haase](https://forum.inductiveautomation.com/u/Joe_Haase)\
**Post date:** [December 18, 2023, 8:58pm UTC](https://forum.inductiveautomation.com/t/tag-history-for-strings/83286/1 "2023-12-18T20:58:01Z")

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I have a string tag with history turned on, for the product recipe name. I would like to be able to tell when that value was changed (ie a new recipe loaded), but am having a hard time trying to figure out how to access the history for it. Any advice would be greatly appreciated.

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**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\
**Post date:** [December 18, 2023, 9:18pm UTC](https://forum.inductiveautomation.com/t/tag-history-for-strings/83286/2 "2023-12-18T21:18:23Z")

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I recommend that you get a feel for the Historian by creating a view with a table. Then bind `props.data` using a Tag History binding on the recipe name.  
Set Query Mode: AsStored.  
Set Time Range: Historical  
Pick start and end dates.

That should reveal the raw data in the Historian. You can proceed from there.

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**Author:** ![Joe\_Haase](https://avatars.discourse-cdn.com/v4/letter/j/13edae/32.png) [@Joe\_Haase](https://forum.inductiveautomation.com/u/Joe_Haase)\
**Post date:** [December 19, 2023, 3:25pm UTC](https://forum.inductiveautomation.com/t/tag-history-for-strings/83286/3 "2023-12-19T15:25:26Z")

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Thanks Transistor, that worked perfect for Perspective, but not for Vision. When I go to choose the tag, only the numerical ones are available to be selected. Any thoughts on that?

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**Author:** ![Transistor](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/transistor/32/3380_2.png) [@Transistor](https://forum.inductiveautomation.com/u/Transistor)\
**Post date:** [December 19, 2023, 6:25pm UTC](https://forum.inductiveautomation.com/t/tag-history-for-strings/83286/4 "2023-12-19T18:25:38Z")

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Hmmmph! That's interesting!

If you want to create your own tag retrieval [Ignition Database Table Reference - Ignition User Manual 8.1 - Ignition Documentation](https://docs.inductiveautomation.com/display/DOC81/Ignition+Database+Table+Reference) tells you the structure of the data tables. It's a bit tricky though as the data will be spread through multiple tables depending on your auto-pruning setup. I would recommend creating your own database for the recipe tag history.