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一、产生该提示原因
plsql dev在用户运行过程中，要收集用户统计信息，但是由于你现在登录的用户没有访问v$session,v$sesstat and v$statname视图的权限，所以不能收集当前用户的统计信息，和plsql dev工具中配置的Automatic Statistics相冲突，所以就出现了这个提示，试验验证：
[oracle@xifenfei ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.3.0 Production on Thu Nov 10 04:31:57 2011 Copyright (c) 1982, 2011, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production With the Partitioning, OLAP, Data Mining and Real Application Testing options sys@XFF>create user chf identified by xifenfei; User created. sys@XFF>grant create session,resource to chf; Grant succeeded. sys@XFF>conn chf/xifenfei Connected. chf@XFF>select * from session_privs; PRIVILEGE ---------------------------------------- CREATE SESSION UNLIMITED TABLESPACE CREATE TABLE CREATE CLUSTER CREATE SEQUENCE CREATE PROCEDURE CREATE TRIGGER CREATE TYPE CREATE OPERATOR CREATE INDEXTYPE 10 rows selected. chf@XFF>SELECT TABLE_NAME FROM USER_TAB_PRIVS; no rows selected
创建一个chf用户，授权create session,resource，无v$session,v$sesstat and v$statname视图访问权限，使用plsql dev登录并查询user_tables表(登录时不会提示，只有用户执行了查询或者相关类此操作时候才会提示)
二、解决问题
根据警告提示，可以有两种方法解决这种警告
1、关闭plsql dev统计功能
在 Tools->Preferences->Options里 把Automatic Statistics前的那个勾子去掉，保存
2、给访问用户授权访问相关视图
授权访问v_$session,v_$sesstat,v_$statname,注意不能直接对v$视图进行授权
chf@XFF>conn / as sysdba Connected. sys@XFF>grant select on v_$session to chf; Grant succeeded. sys@XFF>grant select on v_$sesstat to chf; Grant succeeded. sys@XFF>grant select on v_$statname to chf; Grant succeeded. sys@XFF>conn chf/xifenfei Connected. chf@XFF>SELECT TABLE_NAME FROM USER_TAB_PRIVS; TABLE_NAME ------------------------------ V_$SESSION V_$SESSTAT V_$STATNAME
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PL/SQL连接查询数据报错时Dynamic Performance Tables not accessible
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原文地址：http://www.cnblogs.com/Rainbow-G/p/4282641.html
