GV$HVMASTER_INFO

select
inst_id,                 -- INST_ID NUMBER
KJDRHVID,                -- HV_ID NUMBER
KJDRHVCMAS,              -- CURRENT_MASTER NUMBER
KJDRHVPMAS,              -- PREVIOUS_MASTER NUMBER
KJDRHVRMCNT              -- REMASTER_CNT NUMBER
from
x$kjdrhv
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