DGMGRL> Object "xxxTEST" was not found

Object "prodtest" was not found

sometimes single quotes count and sometime they don't

Issue as below it worked with single quotes.

DGMGRL> show database prodtest;
Object "prodtest" was not found
DGMGRL>
DGMGRL>
DGMGRL> show database 'PRODTEST'

Database
  Name:            PRODTEST
  Role:            PRIMARY
  Enabled:         YES
  Intended State:  ONLINE
  Instance(s):
    PRODTEST

Current status for "PRODTEST":
SUCCESS


DGMGRL>