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在做sql语句的性能优化时执行set autotrace on时出错.特记下解决过程,分享给大家,也方便自己以后查看
1。出错
SQL> set autotrace on exp
SP2-0613: Unable to verify PLAN_TABLE format or existence
SP2-0611: Error enabling EXPLAIN report
2。解决(红色为输入)
SQL*Plus: Release 10.1.0.2.0 - Production on 星期二 1月 12 15:00:56 2010
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - Production
With the Partitioning, OLAP and Data Mining options
SQL>
@$ORACLE_HOME/rdbms/admin/utlxplan
Table created.
SQL>
create public synonym plan_table for plan_table;
Synonym created.
SQL>
grant all on plan_table to public ;
Grant succeeded.
SQL>
@$ORACLE_HOME/sqlplus/admin/plustrce SQL>
SQL> drop role plustrace;
drop role plustrace
*
ERROR at line 1:
ORA-01919: role 'PLUSTRACE' does not exist
SQL> create role plustrace;
Role created.
SQL>
SQL> grant select on v_$sesstat to plustrace;
Grant succeeded.
SQL> grant select on v_$statname to plustrace;
Grant succeeded.
SQL> grant select on v_$session to plustrace;
Grant succeeded.
SQL> grant plustrace to dba with admin option;
Grant succeeded.
SQL>
SQL> set echo off
SQL>
grant plustrace to public ;
Grant succeeded.
SQL>
3。做完上面操作就好了,