Graphing a delta or counter metric with MSSQL data source

5 minute intervals:

200
210
225
250
251

but I want the graph to plot:

0
10
15
25
1

How to get this with grafana / MS SQL server?

welcome to the :grafana: forum, @tomashermansson

have you tried adding a field using the add field from calculation transformation?

You can choose a delta calculation or any other from this list: