当遇到ora错误时需要查询错误信息是其实可以在数据库服务器上来查看
[root@jingyong ~]# su - oracle [oracle@jingyong ~]$ cd $ORACLE_BASE [oracle@jingyong oracle]$ oerr ora 30012 30012, 00000, "undo tablespace '%s' does not exist or of wrong type" // *Cause: the specified undo tablespace does not exist or of the // wrong type. // *Action: Correct the tablespace name and reissue the statement.