【Oracle】SP2-0618: 无法找到会话标识符。启用检查 PLUSTRACE 角色

一.错误描述

SQL> set autotrace on;SP2-0618: 无法找到会话标识符。启用检查 PLUSTRACE 角色SP2-0611: 启用 STATISTICS 报告时出错

二.解决办法

2.1 登录到sys用户，找到$ORACLE_HOME/SQLPLUS/ADMIN/plustrce.sql，执行之

> sqlplus / as sysdba

> @$ORACLE_HOME/SQLPLUS/ADMIN/PLUSTRCE.SQL

2.2 我们打开plustrce.sql看看里面是个什么鬼

---- Copyright (c) Oracle Corporation 1995, 2002.  All Rights Reserved.---- NAME--   plustrce.sql---- DESCRIPTION--   Creates a role with access to Dynamic Performance Tables--   for the SQL*Plus SET AUTOTRACE ... STATISTICS command.--   After this script has been run, each user requiring access to--   the AUTOTRACE feature should be granted the PLUSTRACE role by--   the DBA.---- USAGE--   sqlplus "sys/knl_test7 as sysdba" @plustrce----   Catalog.sql must have been run before this file is run.--   This file must be run while connected to a DBA schema.set echo ondrop role plustrace;create role plustrace;grant select on v_$sesstat to plustrace;grant select on v_$statname to plustrace;grant select on v_$mystat to plustrace;grant plustrace to dba with admin option;set echo off

我们创建plustrace这个角色目的很明确了：

我们在SQL*PLUS上用SET AUTOTRACE ... STATISTICS的时候是通过plustrace这个角色来获取动态性能表信息的。当每一个用户要求使用该命令的时候会自动被DBA用户授予plustrace角色的权限。

参考：http://docs.oracle.com/cd/B10500_01/server.920/a96533/autotrac.htm