# Data query problem

**URL:** <https://forum.inductiveautomation.com/t/data-query-problem/35443>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [June 9, 2020, 8:16am UTC](https://forum.inductiveautomation.com/t/data-query-problem/35443 "2020-06-09T08:16:40Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![m15195757181](https://avatars.discourse-cdn.com/v4/letter/m/b38774/32.png) [@m15195757181](https://forum.inductiveautomation.com/u/m15195757181)\
**Post date:** [June 9, 2020, 8:16am UTC](https://forum.inductiveautomation.com/t/data-query-problem/35443/1 "2020-06-09T08:16:40Z")

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When I was working in vision’s canvas, the canvas was normal for alarm data analysis, but when I was launching Project, the running data could not be displayed normally, and a red mask layer would appear, as shown in the figure. What was the reason?I hope to get your help. Thank you

 ![1591690318(1)](https://us1.discourse-cdn.com/inductiveautomation/original/2X/6/6cfa7ca748cfd982b5d0ec6dee39324202130cba.png) ![1591690318](https://us1.discourse-cdn.com/inductiveautomation/original/2X/2/2e620f17eb64d8cc0be6eb1c4ec8e048ab4cb8b3.png) ![1591690574(1)](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/bf1029daaccc0d0a2a1ba70893d73d7cc4fbd675.png)

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**Author:** ![nminchin](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/nminchin/32/6911_2.png) [@nminchin](https://forum.inductiveautomation.com/u/nminchin)\
**Post date:** [June 9, 2020, 9:44am UTC](https://forum.inductiveautomation.com/t/data-query-problem/35443/2 "2020-06-09T09:44:17Z")

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Could it be that your project security setting doesn’t allow legacy database access?

 ![Screenshot_20200609-191546_Chrome](https://us1.discourse-cdn.com/inductiveautomation/original/2X/8/8441deec8dde35b25224a22f316c99ad8b430f7e.jpeg)

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**Author:** ![bkarabinchak.psi](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/bkarabinchak.psi/32/83567_2.png) [@bkarabinchak.psi](https://forum.inductiveautomation.com/u/bkarabinchak.psi)\
**Post date:** [June 9, 2020, 12:48pm UTC](https://forum.inductiveautomation.com/t/data-query-problem/35443/3 "2020-06-09T12:48:35Z")

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When you go to that page in the Vision client, click “Help”-\>Diagnostics-\>Log Viewer, and click refresh in the bottom left. Look for the name of the component type and select one of the red error warnings. Paste that text here, it will give us a much better look at what specifically is going wrong, and this is a good troubleshooting technique in general.

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**Author:** ![m15195757181](https://avatars.discourse-cdn.com/v4/letter/m/b38774/32.png) [@m15195757181](https://forum.inductiveautomation.com/u/m15195757181)\
**Post date:** [June 10, 2020, 9:04am UTC](https://forum.inductiveautomation.com/t/data-query-problem/35443/4 "2020-06-10T09:04:02Z")

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Thank you!!

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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:** [June 11, 2020, 1:36am UTC](https://forum.inductiveautomation.com/t/data-query-problem/35443/5 "2020-06-11T01:36:32Z")

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you can try “Named Query”

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**Author:** ![m15195757181](https://avatars.discourse-cdn.com/v4/letter/m/b38774/32.png) [@m15195757181](https://forum.inductiveautomation.com/u/m15195757181)\
**Post date:** [June 11, 2020, 6:18am UTC](https://forum.inductiveautomation.com/t/data-query-problem/35443/6 "2020-06-11T06:18:32Z")

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- What is “Named Query”? I don’t get it.