Query from two tables

I’m fairly new with Grafana, I have two tables with timestamps in each with a value field. I’m trying to plot total of the two value files with the same timestamp, not sure how to run query wiht two tables with join on timestamps, please help.


You can use Transformations for this and, in particular, the Add field from calculation transform.

Here is an example. As you can see, I have two queries in the Query tab (for you one query = one table). Then, I add the Add field from calculation transform, select Binary operation for the mode and the + operation. You can check Replace all fields if you only want to show the result of the operation.