oracle表空间处理
--查询表空间使用情况 SELECT Upper(F.TABLESPACE_NAME) "表空间名", 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 WHERE D.TABLESPACE_NAME = F.TABLESPACE_NAME ORDER BY 1; select b.file_id 文件ID, b.tablespace_name 表空间, b.file_name 物理文件名, b.bytes 总字节数, (b.bytes-sum(nvl(a.bytes,0))) 已使用, sum(nvl(a.bytes,0)) 剩余, sum(nvl(a.bytes,0))/(b.bytes)*100 剩余百分比 from dba_free_space a,dba_data_files b where a.file_id=b.file_id group by b.tablespace_name,b.file_name,b.file_id,b.bytes order by b.tablespace_name; SELECT * FROM (SELECT SEGMENT_NAME, SUM(BYTES) / 1024 / 1024 MB FROM DBA_SEGMENTS WHERE TABLESPACE_NAME = 'SYSTEM' GROUP BY SEGMENT_NAME ORDER BY 2 DESC) WHERE ROWNUM < 10; select * from dba_data_files where TABLESPACE_NAME LIKE '%ZF%'; alter tablespace zf add datafile '/u01/oracle/oradata/zf03.dbf' size 20480M autoextend off; alter tablespace SYSAUX add datafile '/u01/oracle/oradata/sysaux02.dbf' size 4096M autoextend off;