Where and how do I get the SQL Query used by the Microsoft Generic Report Library - Alerts?

Question

Background:
I'm tasked with the following: I need to create a new Report and the SQL
The two canned reports that I can pattern after are: Microsoft Generic Report Library
- Alerts (there is also an alert detail report that can be chosen within the alert report that we may want to use instead)
- Most Common Alerts
I'm trying to do this:
Add another parameter to search on customfield3.
It should be able to report on all alerts that were assigned to the specific team for the time period along with the top 10 (most common alerts) assigned to the team for the time period.
Choose as the objects (group) all servers, but Imay need to adjust the report to just look at all alerts without having to provide objects or a group
The struggle I'm having is: I know SQL. I know how to create an RDL file.
But Where are the RDL files for the canned reports so I can modify the canned RDL and modify its SQL and forms?
What is the SQL/ where can I find the SQL used for the Generic Report Library -> Alerts

Answer 1

Easy but you need to extract it from Microsoft Generic Report Pack. 
So.. the procedure is as follows:
1) You export and unseal Management Pack from your SCOM using
Boris's OpsgMgr tools (MPViewer
2.3.3)
2) Ok you've got unsealed xml, now the tricky part, use
MpElementsExtract tool, example of usage:
MPElementsExtract.exe <MP.xml> /ex /destination:<destination>
That you way you get several folders out of mp:
DWScripts, DWSubScripts, LinkedReports, ReportResources, Reports
Take a look into content of first 2, there will be pure sql scripts, and rdl's are in Reports folder :)
Other way is to just use SQL profiler and catch SQL query while generating report. 
--- Jeff (Netwrix)