# Easy chart lost data

**URL:** <https://forum.inductiveautomation.com/t/easy-chart-lost-data/18060>\
**Category:** Ignition\
**Tags:** ignition79\
**Created:** [May 16, 2018, 1:07pm UTC](https://forum.inductiveautomation.com/t/easy-chart-lost-data/18060 "2018-05-16T13:07:41Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![lyhkch](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lyhkch/32/9381_2.png) [@lyhkch](https://forum.inductiveautomation.com/u/lyhkch)\
**Post date:** [May 16, 2018, 1:07pm UTC](https://forum.inductiveautomation.com/t/easy-chart-lost-data/18060/1 "2018-05-16T13:07:41Z")

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Hi ， when I use easy chart , sometime there is no curve display in easy chart , but when I check SQL SERVER , I can query data this time period . How could I solve the problem

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [May 16, 2018, 2:08pm UTC](https://forum.inductiveautomation.com/t/easy-chart-lost-data/18060/2 "2018-05-16T14:08:53Z")

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With the information you have provided, it narrows things down to just about everything. 😁

Seriously, though, the more information you can provide, the better our answers will be.

Lets start with:

What version of Ignition and SQL Server you’re running?  
What query are you using?  
May we see a screenshot of the Easy Chart setup?

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**Author:** ![lyhkch](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lyhkch/32/9381_2.png) [@lyhkch](https://forum.inductiveautomation.com/u/lyhkch)\
**Post date:** [May 17, 2018, 12:00am UTC](https://forum.inductiveautomation.com/t/easy-chart-lost-data/18060/3 "2018-05-17T00:00:29Z")

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Hi  
Ignition7.9.4 （64BIT） and SQL Server 2012  
I use “ Cell Update ” function to query data from SQL SERVER.  
Sorry , I forget to save the picture.

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**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [May 17, 2018, 1:08pm UTC](https://forum.inductiveautomation.com/t/easy-chart-lost-data/18060/4 "2018-05-17T13:08:12Z")

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> [@lyhkch](#):
>
> but when I check SQL SERVER , I can query data this time period .

what specific query are you using? Cell update doesn't tell me anything.

Does the chart display if you hard code your query information?

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**Author:** ![lyhkch](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/lyhkch/32/9381_2.png) [@lyhkch](https://forum.inductiveautomation.com/u/lyhkch)\
**Post date:** [May 19, 2018, 2:44pm UTC](https://forum.inductiveautomation.com/t/easy-chart-lost-data/18060/5 "2018-05-19T14:44:21Z")

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Thank you for your replay , maybe I make a mistake, chart time and sql t\_stamp.