left join accountsitemapping asm on adef.org_id=asm.accountid
Left Join Sitedefinition sdef on asm.siteid=sdef.siteid
LEFT JOIN sdorganization sdo on sdef.siteid=sdo.org_id order by adef.org_id
To get the requester details of the corresponding Account / Sites.
For Requesters:
Goto Reports -> New custom report -> Select a module -> CMDB -> select User (filterby) -> Proceed.
Now choose Account / Site / CI name in the columns and run the report