1: --查询表空间使用情况

   2: SELECT Upper(F.TABLESPACE_NAME)         "表空间名",

   3:        D.TOT_GROOTTE_MB                 "表空间大小(M)",

   4:        D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",

   5:        To_char(Round(( D.TOT_GROOTTE_MB - F.TOTAL_BYTES ) / D.TOT_GROOTTE_MB * 100, 2), '990.99')

   6:        || '%'                           "使用比",

   7:        F.TOTAL_BYTES                    "空闲空间(M)",

   8:        F.MAX_BYTES                      "最大块(M)",

   9:        D.AUTOEXTENSIBLE                 "是否自增长",

  10:        D.INCREMENTSIZE                  "自增长大小(M)"

  11: FROM   (SELECT TABLESPACE_NAME,

  12:                Round(Sum(BYTES) / ( 1024 * 1024 ), 2) TOTAL_BYTES,

  13:                Round(Max(BYTES) / ( 1024 * 1024 ), 2) MAX_BYTES

  14:         FROM   SYS.DBA_FREE_SPACE

  15:         GROUP  BY TABLESPACE_NAME) F,

  16:        (SELECT DD.TABLESPACE_NAME,

  17:                Round(Sum(DD.BYTES) / ( 1024 * 1024 ), 2) TOT_GROOTTE_MB,

  18:                AUTOEXTENSIBLE,

  19:                --INCREMENT_BY的单位是数据块的大小。数据块大小一般为默认8k

  20:                Round(INCREMENT_BY * (select value/1024 from v$parameter where name='db_block_size')/1024, 2) INCREMENTSIZE

  21:         FROM   SYS.DBA_DATA_FILES DD

  22:         GROUP  BY DD.TABLESPACE_NAME,AUTOEXTENSIBLE,INCREMENT_BY) D

  23: WHERE  D.TABLESPACE_NAME = F.TABLESPACE_NAME

  24: ORDER  BY  "表空间名"