Oracle表空间查询、添加

1、表空间详细信息

SELECT Upper(F.TABLESPACE_NAME)         "表空间名",
       lj.FILE_NAME                     "物理地址",
       D.TOT_GROOTTE_MB                 "表空间大小(M)",
       D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",
       To_char(Round(( D.TOT_GROOTTE_MB - F.TOTAL_BYTES ) / D.TOT_GROOTTE_MB * 100, 2), '990.99')
       || '%'                           "使用比",
       F.TOTAL_BYTES                    "空闲空间(M)",
       F.MAX_BYTES                      "最大块(M)"
FROM   (SELECT TABLESPACE_NAME,
               Round(Sum(BYTES) / ( 1024 * 1024 ), 2) TOTAL_BYTES,
               Round(Max(BYTES) / ( 1024 * 1024 ), 2) MAX_BYTES
        FROM   SYS.DBA_FREE_SPACE
        GROUP  BY TABLESPACE_NAME) F,
       (SELECT DD.TABLESPACE_NAME,
               Round(Sum(DD.BYTES) / ( 1024 * 1024 ), 2) TOT_GROOTTE_MB
        FROM   SYS.DBA_DATA_FILES DD
        GROUP  BY DD.TABLESPACE_NAME) D,
				dba_data_files lj 
WHERE  D.TABLESPACE_NAME = F.TABLESPACE_NAME AND lj.tablespace_name=F.TABLESPACE_NAME
ORDER  BY 1 

2、增加表空间

a.直接加表空间

alter tablespace 表空间名称 add datafile '/opt/oracle/oradata/tsp_hdc_dwb2.dbf' size 30000M;

b.加表空间并设置自增长

 alter tablespace 表空间名称 add datafile '/opt/oracle/oradata/tsp_hdc_dwb2.dbf' size 500M autoextend on maxsize 10000M;