The problem was in
CALL "HCP"."HCP_GRANT_ROLE_TO_USER"('pxxtrial.bigdata.airlines::airline_user','pxxtrial')
The user name at the end of the statement had to be without the "trial" suffix.
The problem was in
CALL "HCP"."HCP_GRANT_ROLE_TO_USER"('pxxtrial.bigdata.airlines::airline_user','pxxtrial')
The user name at the end of the statement had to be without the "trial" suffix.