How to Find REQUEST GROUP?

This query display the Request Group Name with help of Executable name in oracle applications.

SELECT frg.request_group_name,
        fa.application_short_name,
       fe.execution_file_name,
       fe.executable_name
  FROM fnd_request_groups frg,
       fnd_request_group_units frgu,
       fnd_concurrent_programs fcp,
       fnd_executables fe,
       fnd_application fa
 WHERE    FRG.application_id = fa.application_id
       AND frgu.request_group_id = frg.request_group_id
       AND fe.executable_id = fcp.executable_id
       AND frgu.request_unit_id = fcp.concurrent_program_id
       AND fe.executable_name = 'XX_PC_PURCHASE';