Visual Dashboard using 4 fields in Stats count

[jeish99]

I'm trying to create a visual dashboard  (specifically a column graph or bar chart) using 

index=guardium ruleDesc="OS Command Injection"
| stats count by dbUser, DBName, serviceName, sql

This is the graph I get:

I would like to group these fields into categories on the chart where one part would show count of 1-5 then 6-10...and so on.  Then I could drill down a specific bar within the count group to view the fields for that bar in a table format.  How would I go about doing this.  I am new to splunk and have been stuck finding the best way to represent this data.  I was given this search statement and was told to make a visual dashboard of it.

[fredclown · Accepted solution]

You would do a second stats to roll them up like this ...

index=guardium ruleDesc="OS Command Injection"
| stats count by dbUser, DBName, serviceName, sql
| eval category = case(
    count < 6, "1-5",
    count < 11, "6-10",
    count < 16, "11-15",
    1==1, "16+"
)
| stats count by category

Then you would set up a drilldown on the chart to pass a token to another search and limit it based on the token..