Oralce表空间查询语句

--查询表空间使用情况
SELECT UPPER(F.TABLESPACE_NAME) "表空间名",
D.TOT_GROOTTE_MB "自增表空间大小(G)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(G)",
TO_CHAR(ROUND(((D.TOT_GROOTTE_MB - F.TOTAL_BYTES)*100) / DDF.MAX_BYTES ,2),'990.99') || '%' "使用比",
DDF.MAX_BYTES "最大表空间(G)"
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024 * 1024), 2) TOTAL_BYTES
FROM SYS.DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME) F,
(SELECT DD.TABLESPACE_NAME,
ROUND(SUM(DD.BYTES) / (1024 * 1024 * 1024), 2) TOT_GROOTTE_MB
FROM SYS.DBA_DATA_FILES DD
GROUP BY DD.TABLESPACE_NAME) D,
(select tablespace_name,sum(case when maxbytes!='0' then maxbytes/1024/1024/1024 else bytes/1024/1024/1024 end) max_bytes 
from dba_data_files group by tablespace_name) ddf
where D.tablespace_name=F.tablespace_name and d.tablespace_name=ddf.tablespace_name
ORDER BY 4 DESC;

SELECT UPPER(F.TABLESPACE_NAME) "表空间名",
D.TOT_GROOTTE_MB "自增表空间大小(M)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES "已使用空间(M)",
TO_CHAR(ROUND(((D.TOT_GROOTTE_MB - F.TOTAL_BYTES)*100) / DDF.MAX_BYTES ,2),'990.99') || '%' "使用比",
DDF.MAX_BYTES "最大表空间(M)"
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024), 2) TOTAL_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,
(select tablespace_name,sum(case when maxbytes!='0' then maxbytes/1024/1024 else bytes/1024/1024 end) max_bytes 
from dba_data_files group by tablespace_name) ddf
where D.tablespace_name=F.tablespace_name and d.tablespace_name=ddf.tablespace_name
ORDER BY 4 DESC;

--终端执行
SELECT UPPER(F.TABLESPACE_NAME) "TABLESPACENAME",
D.TOT_GROOTTE_MB "ALL(G)",
D.TOT_GROOTTE_MB - F.TOTAL_BYTES "USER(G)",
TO_CHAR(ROUND(((D.TOT_GROOTTE_MB - F.TOTAL_BYTES)*100) / DDF.MAX_BYTES ,2),'990.99') || '%' "PROPORTION",
DDF.MAX_BYTES "MAX(G)"
FROM (SELECT TABLESPACE_NAME,
ROUND(SUM(BYTES) / (1024 * 1024 * 1024), 2) TOTAL_BYTES
FROM SYS.DBA_FREE_SPACE
GROUP BY TABLESPACE_NAME) F,
(SELECT DD.TABLESPACE_NAME,
ROUND(SUM(DD.BYTES) / (1024 * 1024 * 1024), 2) TOT_GROOTTE_MB
FROM SYS.DBA_DATA_FILES DD
GROUP BY DD.TABLESPACE_NAME) D,
(select tablespace_name,sum(case when maxbytes!='0' then maxbytes/1024/1024/1024 else bytes/1024/1024/1024 end) max_bytes 
from dba_data_files group by tablespace_name) ddf
where D.tablespace_name=F.tablespace_name and d.tablespace_name=ddf.tablespace_name
ORDER BY 4 DESC;