Data query problem

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

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

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.

Thank you!!

you can try “Named Query”

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