oracle中ora-04301故障处理

ksmchidx,
       (case
         when ksmchsiz >= 65560 then
          254
         when ksmchsiz >= 32792 then
          253
         when ksmchsiz >= 40 then
          1
         when ksmchsiz >= 32 then
          0
       end) bucket#,
       count(*) free_chunks,
       sum(ksmchsiz) free_space,
       trunc(avg(ksmchsiz)) avg_chunk_size
  from x$ksmsp
where ksmchcls = 'free'
group by ksmchidx,
       (case
         when ksmchsiz >= 65560 then
          254
         when ksmchsiz >= 32792 then
          253
         when ksmchsiz >= 40 then
          1
         when ksmchsiz >= 32 then
          0
       end);

select name,value from v$sysstat where name like '%parse%';

    
      
SELECT substr(sql_text, 1, 40) "SQL", count(*), sum(executions) "TotExecs",max(sql_id) sql_id
  FROM v$sqlarea
WHERE executions GROUP BY substr(sql_text, 1, 40)
HAVING count(*) > 30
ORDER BY 2;

  select *  FROM v$sqlarea where sql_id='g2b789ppwxjx8';  

ELECT KSMCHCLS CLASS, COUNT(KSMCHCLS) NUM, SUM(KSMCHSIZ) SIZ,
   To_char( ((SUM(KSMCHSIZ)/COUNT(KSMCHCLS)/1024)),'999,999.00')||'k' "AVG SIZE"
   FROM X$KSMSP GROUP BY KSMCHCLS;