1.6、查询临时表空间使用情况：
 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$TEMP_SPACE_HEADER
 GROUP BY TABLESPACE_NAME) F
 WHERE  D.TABLESPACE_NAME = F.TABLESPACE_NAME(+);
1.7、kill session OS level 要慎重这个命令
 --进入当前session节点
select 'kill -9 '||p.spid as osid from v$session s ,v$process p where s.paddr=p.addr  and  sid in (需要杀掉的SID)