ORACLE磁盘空间占满解决

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:appAdministratordiag

方案二：缩放临时表空间
select file#,name from v$datafile;
获得目录结果：E:APPADMINISTRATORORADATACLOTADBCLOTA_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:APPADMINISTRATORORADATAORCLUNDOTBS01.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 then
stmt := 'select count(*) from "'||table_name||'"';
else
stmt := '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