今天新搭建了乙個10g的測試資料庫，執行都很正常，但是在開啟autotrace功能後執行語句，報錯
sql> set autotrace on
sql> select username,sid,serial#,server,paddr,status from v$session where username=user;
username sid serial# server paddr status
sys 35 11 dedicated 2553cce8 active
sys 50 16 dedicated 2553cce8 inactive
error:
ora-00604: error occurred at recursive sql level 1
ora-01552: cannot use system rollback segment for non-system tablespace 『tempts1』
sp2-0612: error generating autotrace explain report
0 recursive calls
0 db block gets
0 consistent gets
0 physical reads
0 redo size
768 bytes sent via sql*net to client
380 bytes received via sql*net from client
2 sql*net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
2 rows processed
sql> show parameter undo
name type value
undo_management string manual
undo_retention integer 900
undo_tablespace string
再看看系統中回滾段的狀態
sql> select segment_name, tablespace_name, status from dba_rollback_segs;
segment_name tablespace_name status
system system online
_syssmu1un
dotb
soff
line
syss
mu2 undotbs offline
_syssmu3un
dotb
soff
line
syss
mu4 undotbs offline
_syssmu5un
dotb
soff
line
syss
mu6 undotbs offline
_syssmu7un
dotb
soff
line
syss
mu8 undotbs offline
_syssmu9un
dotb
soff
line
syss
mu10 undotbs offline
因為這庫是手工建立的，在編輯初始化引數檔案時，忘了設定undo_management和undo_tablespace。知道了這個，我想解決起來也就很簡單了，
首選的當然是使用自動管理表空間的方式。
sql> alter system set undo_tablespace=undotbs scope=spfile;
system altered.
sql> alter system set undo_management=auto scope=spfile;
system altered.
sql> shutdown immediate
database closed.
database dismounted.
oracle instance shut down.
sql> startup
oracle instance started.
total system global area 96468992 bytes
fixed size 1217884 bytes
variable size 88083108 bytes
database buffers 4194304 bytes
redo buffers 2973696 bytes
database mounted.
database opened.
另外，我們也可以繼續沿用老的手動管理回滾段的方式。
sql> create rollback segment rbs01;
rollback segment created.
sql> alter rollback segment rbs01 online;
rollback segment altered.
sql> select segment_name, tablespace_name, status from dba_rollback_segs;
segment_name tablespace_name status
system system online
_syssmu1un
dotb
soff
line
syss
mu2 undotbs offline
_syssmu3un
dotb
soff
line
syss
mu4 undotbs offline
_syssmu5un
dotb
soff
line
syss
mu6 undotbs offline
_syssmu7un
dotb
soff
line
syss
mu8 undotbs offline
_syssmu9un
dotb
soff
line
syss
mu10 undotbs offline
segment_name tablespace_name status
rbs01 system online
這樣，就不會有任何問題了。
sql> set autotrace trace
sql> set line 124
sql> select tablespace_name from dba_tablespaces;
plan hash value: 3778488125
| 0 | select statement | | 5 | 65 | 4 (0)| 00:00:01 |
1 - filter(「ts」.」online$」<>3 and bitand(「flags」,2048)<>2048)
0 recursive calls
0 db block gets
0 consistent gets
0 physical reads
0 redo size
0 bytes sent via sql*net to client
0 bytes received via sql*net from client
0 sql*net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
5 rows processed
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