V$SQL_HINT definition in Oracle Database 11.2
V$SQL_HINT

select
  NAME,                                    -- NAME VARCHAR2(64)
  SQL_FEATURE,                             -- SQL_FEATURE VARCHAR2(64)
  CLASS,                                   -- CLASS VARCHAR2(64)
  INVERSE,                                 -- INVERSE VARCHAR2(64)
  TARGET_LEVEL,                            -- TARGET_LEVEL NUMBER
  PROPERTY,                                -- PROPERTY NUMBER
  VERSION,                                 -- VERSION VARCHAR2(25)
  VERSION_OUTLINE                          -- VERSION_OUTLINE VARCHAR2(25)
from
  gv$sql_hint
where
  inst_id=USERENV('Instance')

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