# DataQuality

**URL:** <https://forum.inductiveautomation.com/t/dataquality/3726>\
**Category:** Ignition\
**Created:** [December 9, 2011, 7:32pm UTC](https://forum.inductiveautomation.com/t/dataquality/3726 "2011-12-09T19:32:39Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jdelgado](https://avatars.discourse-cdn.com/v4/letter/j/85f322/32.png) [@jdelgado](https://forum.inductiveautomation.com/u/jdelgado)\
**Post date:** [December 9, 2011, 7:32pm UTC](https://forum.inductiveautomation.com/t/dataquality/3726/1 "2011-12-09T19:32:39Z")

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Hi,

I just have a question about the data quality values of the tag properties do they return a string or a number. I have the expression below on a sqltag name CommError but I am not getting the results I am expecting. The quality for the the FaultBatt tag is unknown but the CommError Tag is 0

if(({[.]FaultBatt.Quality}=“Bad”)||  
({[.]FaultBatt.Quality}=“Comm\_Error”)||  
({[.]FaultBatt.Quality}=“Unknown”), 1, 0)

Thanks

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**Author:** ![jdelgado](https://avatars.discourse-cdn.com/v4/letter/j/85f322/32.png) [@jdelgado](https://forum.inductiveautomation.com/u/jdelgado)\
**Post date:** [December 9, 2011, 8:20pm UTC](https://forum.inductiveautomation.com/t/dataquality/3726/2 "2011-12-09T20:20:36Z")

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I found out what I was doing wrong quality return a value an not a string.

Thanks

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**Author:** ![jdelgado](https://avatars.discourse-cdn.com/v4/letter/j/85f322/32.png) [@jdelgado](https://forum.inductiveautomation.com/u/jdelgado)\
**Post date:** [December 9, 2011, 8:48pm UTC](https://forum.inductiveautomation.com/t/dataquality/3726/3 "2011-12-09T20:48:26Z")

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Well I thought I fix it but nothing I dont get tag to evaluate correctly.

if(({[.]FaultBatt.Quality}!=192),1,0)

Thanks

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**Author:** ![dave.fogle](https://avatars.discourse-cdn.com/v4/letter/d/43a26b/32.png) [@dave.fogle](https://forum.inductiveautomation.com/u/dave.fogle)\
**Post date:** [December 9, 2011, 9:56pm UTC](https://forum.inductiveautomation.com/t/dataquality/3726/4 "2011-12-09T21:56:24Z")

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For future reference, we got this to work by casting the tag quality reference to an integer using the toInt() expression function.