问题现象：数据库出现ORA-20000错误：
Errors in file /home/oracle/admin/zjindex/bdump/zjindex2_j002_615322.trc:
ORA-12012: error on auto execute of job 8887
ORA-20000: ORA-20000: Content of the tablespace specified is not permanent or tablespace name is invalid
ORA-06512: at "SYS.PRVT_ADVISOR", line 1624
ORA-06512: at "SYS.DBMS_ADVISOR", line 186
ORA-06512: at "SYS.DBMS_SPACE", line 1338
ORA-06512: at "SYS.DBMS_SPACE", line 1554
分析过程：
1、定位
查看JOB信息，确认由于AUTO_SPACE_ADVISOR_JOB出了问题
SQL> select job_name,state,run_count,failure_count from dba_scheduler_jobs;
JOB_NAME STATE RUN_COUNT FAILURE_COUNT
------------------------------ --------------- ---------- -------------
PURGE_LOG SCHEDULED 1296 0
FGR$AUTOPURGE_JOB DISABLED 0 0
GATHER_STATS_JOB SCHEDULED 1108 0
AUTO_SPACE_ADVISOR_JOB SCHEDULED 1108 872
RLM$EVTCLEANUP SCHEDULED 31033 0
RLM$SCHDNEGACTION SCHEDULED 32308 0
ADV_SEGMENTADV_1564578 SUCCEEDED 1 0
ADV_SEGMENTADV_5868170 SUCCEEDED 1 0
ADV_SEGMENTADV_4100857 SUCCEEDED 1 0
9 rows selected
SQL>
---------------------------------------------------------------------------------------------------------------------------------
通过查询dba_auto_segadv_ctl表获得被删除的表空间
SQL> select tablespace_name from dba_auto_segadv_ctl
2 where tablespace_name not in (select tablespace_name from dba_tablespaces)
3 /
TABLESPACE_NAME
------------------------------
TZQ
2、原因：找不到表空间返回的错误
Metalink说是Oracle bug,when the tablespace is created the statistics are captured for this tablespace.
When the tablespace is dropped the segments for which the segstats are collected continue to reference the dropped tablespace.AUTO_SPACE_ADVISOR_JOB。
由于TZQ表空间已经被删除，在运行AUTO_SPACE_ADVISOR_JOB时还会对它进行段建议。导致了ORA-20000错误发生。Internal BUG:4707226
3、解决方法：
※Bug 4707226 will be fixed in release 10.2.0.4-----------补丁升级
※通过手动删除DBA_AUTO_SEGADV_CTL里表空间记录-------------手动维护
4、验证方法：
DELETE FROM dba_auto_segadv_ctl where tablespace_name not in (select tablespace_name from dba_tablespaces)
执行exec dbms_space.auto_space_advisor_job_proc验证