查看临时表空间及大小

--查看所有临时表空间名字及文件名
select f.file#,t.ts#,f.name "File",t.name "Tablespace" from v$tempfile f,V$tablespace t where f.ts# = t.ts#;  
 
--查看当前用户默认临时表空间
select * from database_properties where property_name='DEFAULT_TEMP_TABLESPACE';
 
--查看所有用户的默认表空间和默认临时表空间
select USERNAME,DEFAULT_TABLESPACE,TEMPORARY_TABLESPACE from dba_users;


--查看所有临时表空间大小
SELECT D.TABLESPACE_NAME,SPACE "SUM_SPACE(M)",BLOCKS SUM_BLOCKS, 
USED_SPACE "USED_SPACE(M)",ROUND(NVL(USED_SPACE,0)/SPACE*100,2) "USED_RATE(%)",
NVL(FREE_SPACE,0) "FREE_SPACE(M)"
FROM 
(SELECT TABLESPACE_NAME,ROUND(SUM(BYTES)/(1024*1024),2) SPACE,SUM(BLOCKS) BLOCKS
FROM DBA_TEMP_FILES
GROUP BY TABLESPACE_NAME) D,
(SELECT TABLESPACE_NAME,ROUND(SUM(BYTES_USED)/(1024*1024),2) USED_SPACE,
ROUND(SUM(BYTES_FREE)/(1024*1024),2) FREE_SPACE
FROM V$TEMP_SPACE_HEADER
GROUP BY TABLESPACE_NAME) F
WHERE  D.TABLESPACE_NAME = F.TABLESPACE_NAME(+);