查看錶空間使用情況的sql

SELECT D.TABLESPACE_NAME, 
       SPACE || 'M' "SUM_SPACE(M)", 
       BLOCKS "SUM_BLOCKS", 
       SPACE - NVL (FREE_SPACE, 0) || 'M' "USED_SPACE(M)", 
       ROUND ( (1 - NVL (FREE_SPACE, 0) / SPACE) * 100, 2) || '%' 
          "USED_RATE(%)", 
       FREE_SPACE || 'M' "FREE_SPACE(M)" 
  FROM (  SELECT TABLESPACE_NAME, 
                 ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE, 
                 SUM (BLOCKS) BLOCKS 
            FROM DBA_DATA_FILES 
        GROUP BY TABLESPACE_NAME) D, 
      (  SELECT TABLESPACE_NAME, 
                 ROUND (SUM (BYTES) / (1024 * 1024), 2) FREE_SPACE 
            FROM DBA_FREE_SPACE 
        GROUP BY TABLESPACE_NAME) F 
 WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+) 
UNION ALL
SELECT D.TABLESPACE_NAME, 
      SPACE || 'M' "SUM_SPACE(M)", 
       BLOCKS SUM_BLOCKS, 
      USED_SPACE || 'M' "USED_SPACE(M)", 
       ROUND (NVL (USED_SPACE, 0) / SPACE * 100, 2) || '%' "USED_RATE(%)", 
      NVL (FREE_SPACE, 0) || 'M' "FREE_SPACE(M)" 
 FROM (  SELECT TABLESPACE_NAME, 
                ROUND (SUM (BYTES) / (1024 * 1024), 2) SPACE, 
                SUM (BLOCKS) BLOCKS 
           FROM DBA_TEMP_FILES 
        GROUP BY TABLESPACE_NAME) D, 
       (  SELECT TABLESPACE_NAME, 
                 ROUND (SUM (BYTES_USED) / (1024 * 1024), 2) USED_SPACE, 
                 ROUND (SUM (BYTES_FREE) / (1024 * 1024), 2) FREE_SPACE 
            FROM V$TEMP_SPACE_HEADER 
        GROUP BY TABLESPACE_NAME) F 
 WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME(+) 
ORDER BY 1;