方案一：清理Oracle服务端目录下，diag日志目录下，的各种日志 如：E:\app\Administrator\diag

方案二：缩放临时表空间

select file#,name from v$datafile;

获得目录结果：E:\APP\ADMINISTRATOR\ORADATA\CLOTADB\CLOTA_DATA.DBF

查看各空间的使用率，根据使用率进行针对性缩放，缩放不能小于其实际大小

如：本身500M，缩放大小不是600M

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

根据具体的目录，来进行实际的缩放，设置要缩放的大小

ALTER DATABASE DATAFILE ‘E:\APP\ADMINISTRATOR\ORADATA\ORCL\UNDOTBS01.DBF‘ RESIZE 500M

方案三：

oracle10g，在pl/sql中选中删除后会出现类似：BIN$nJ5JuP9cQmqPaArFei384g==$0的表。

1.查看回收站

select * from user_recyclebin;

2.清空回收站

purge recyclebin;

方案四：其它相关create or replace function count_rows(table_name in varchar2,owner in varchar2 default null)return number authid current_user IS num_rows number;stmt varchar2(2000);begin if owner is null thenstmt := ‘select count(*) from "‘||table_name||‘"‘;elsestmt := ‘select count(*) from "‘||owner||‘"."‘||table_name||‘"‘;end if; execute immediate stmt into num_rows;return num_rows;end;查看数据库各表的数据量大小，释放时不作为优先选项处理 select table_name, count_rows(table_name) nrows from user_tables order by count_rows(table_name) desc