# Historian Schema

**URL:** <https://forum.inductiveautomation.com/t/historian-schema/5202>\
**Category:** Ignition\
**Created:** [September 26, 2012, 7:38pm UTC](https://forum.inductiveautomation.com/t/historian-schema/5202 "2012-09-26T19:38:52Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Pat](https://avatars.discourse-cdn.com/v4/letter/p/8491ac/32.png) [@Pat](https://forum.inductiveautomation.com/u/Pat)\
**Post date:** [September 26, 2012, 7:38pm UTC](https://forum.inductiveautomation.com/t/historian-schema/5202/1 "2012-09-26T19:38:52Z")

</div>

Is there a white paper on the Historian database schema, something like the one for SQLTags?

---

<div class="post-metadata">

**Author:** ![greg.simpson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/greg.simpson/32/3135_2.png) [@greg.simpson](https://forum.inductiveautomation.com/u/greg.simpson)\
**Post date:** [September 26, 2012, 8:27pm UTC](https://forum.inductiveautomation.com/t/historian-schema/5202/2 "2012-09-26T20:27:09Z")

</div>

If you download the Module SDK from here

[files.inductiveautomation.com/re … -7.5.3.zip](http://files.inductiveautomation.com/release/build7.5.3/09-17-2012_15_02/Ignition-ModuleSDK-7.5.3.zip)

the Ignition Programmers Guide has the information about the historical table structure. It is in Appendix C

---

<div class="post-metadata">

**Author:** ![Pat](https://avatars.discourse-cdn.com/v4/letter/p/8491ac/32.png) [@Pat](https://forum.inductiveautomation.com/u/Pat)\
**Post date:** [September 26, 2012, 9:54pm UTC](https://forum.inductiveautomation.com/t/historian-schema/5202/3 "2012-09-26T21:54:11Z")

</div>

Thanks