GV$DATAPUMP_JOB definition in Oracle Database 11.2
GV$DATAPUMP_JOB

SELECT
  inst_id,                                 -- INST_ID NUMBER
  kupvjid,                                 -- JOB_ID RAW(16)
  kupvjjob,                                -- JOB_NAME VARCHAR2(30)
  kupvjowner,                              -- OWNER_NAME VARCHAR2(30)
  kupvjctrlque,                            -- MSG_CTRL_QUEUE VARCHAR2(30)
  kupvjstatque,                            -- STATUS_QUEUE VARCHAR2(30)
  kupvjoperation,                          -- OPERATION VARCHAR2(30)
  kupvjmode,                               -- JOB_MODE VARCHAR2(30)
  kupvjmasterid,                           -- MASTER_ID NUMBER
  kupvjstate,                              -- STATE VARCHAR2(30)
  kupvjworkers,                            -- WORKERS NUMBER
  kupvjflags,                              -- FLAGS NUMBER
  kupvjserialnum,                          -- SERIALNUM NUMBER
  kupvjquetabnum                           -- QUEUE_TABNUM NUMBER
FROM
  x$kupvj

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