Oracle管理监控之段空间利用监控-oracle性能优化

SELECT S.OWNER,
       S.SEGMENT_NAME,
       S.SEGMENT_TYPE,
       S.PARTITION_NAME,
       ROUND(BYTES / (1024 * 1024), 2) "USED_SPACE(M)",
       EXTENTS USED_EXTENTS,
       S.MAX_EXTENTS,
       S.BLOCKS ALLOCATED_BLOCKS,
       S.BLOCKS USED_BOLCKS,
       S.PCT_INCREASE,
       S.INITIAL_EXTENT,
       S.NEXT_EXTENT / 1024 "NEXT_EXTENT(K)",
       S.TABLESPACE_NAME
  FROM DBA_SEGMENTS S
WHERE S.OWNER = USER
ORDER BY Used_Extents DESC