Resolve dynamic performance Tables not accessible method

Today in the ADF development process, using the graph-related components used for statistics, when running the program, there are some inexplicable errors, to query the error in the WebLogic log, found that the problem is a database, using PL/SQL developer run the SQL statement for statistics, There is a mistake, the first time after using the ADF database to connect users to the SQL times out of the dynamic performance Tables not accessible error, the following is the solution found:

Step 1:
Sql> alter system set O7_DICTIONARY_ACCESSIBILITY=TRUE Scope=spfile;
Restart Oracle for Effective

Step 2:
Sql> Grant create any table to user;

Step3:
Sql> Grant Select any table to user;

Reference: http://bbs.chinaunix.net/thread-1228946-1-14.html