Top 10

Who are my top 10 users:

AppPageViews
| summarize count() by UserId
| top 10 by count_
| render piechart 

Who may need to be trained as lots of exceptions thrown:

AppExceptions
| summarize count() by UserId
| top 10 by count_
| render piechart 

What are the top 10 pages viewed:

AppPageViews
| summarize count() by Name
| top 10 by count_
| render piechart