# 'Uncertain\_IntialValue’ in OPC to DB transaction

**URL:** <https://forum.inductiveautomation.com/t/uncertain-intialvalue-in-opc-to-db-transaction/38816>\
**Category:** Ignition\
**Created:** [September 17, 2020, 10:08pm UTC](https://forum.inductiveautomation.com/t/uncertain-intialvalue-in-opc-to-db-transaction/38816 "2020-09-17T22:08:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![NII](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nii/32/12920_2.png) [@NII](https://forum.inductiveautomation.com/u/NII)\
**Post date:** [September 17, 2020, 10:08pm UTC](https://forum.inductiveautomation.com/t/uncertain-intialvalue-in-opc-to-db-transaction/38816/1 "2020-09-17T22:08:12Z")

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I have an opc tag with linear scaled mode set (10:1) and I am storing it to a db using OPC to DB transaction group.

If the tag’s quality has/becomes ‘Uncertain\_IntialValue’, what would be stored to the db?  
Will it be zero, last known value, raw opc value (unscaled), some random number or throw an error?

TIA