We are setting up a new ArcGIS Server 10.3.1 instance and are experimenting with the statistical queries. However, any time we use the 'outStatistics' parameter, we get a 'unable to complete operation' error. Digging thru the server logs all we can see is a 'general geodatabase' error message.
Our data is in Oracle Spatial 11gR2.
Has anyone else had issues with statistical queries? It's a bummer as many of the widgets in Operations Dashboard rely on these which precludes their use for us.
Here is an example of a typical outStatistics request: