SQL Profile

When you run SQL Tuning Advisor, sometimes you can see findings for SQL Profile:
1- SQL Profile Finding (see explain plans section below)
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  A potentially better execution plan was found for this statement.


  Recommendation (estimated benefit: 99.99%)
  ------------------------------------------
  - Consider accepting the recommended SQL profile.
    execute dbms_sqltune.accept_sql_profile(task_name => 'staName61543', task_owner => 'PWRLINE', replace => TRUE);

12c Query Against Dictionary Views slow

Doc ID 1292253.1

SQL> purge recyclebin; --if you have DBA access, purge dba_recyclebin;
SQL> EXEC DBMS_STATS.GATHER_TABLE_STATS(OWNNAME =>'SYS', TABNAME => '$KTFBUE',ESTIMATE_PERCENT=>100);
SQL> EXEC DBMS_STATS.GATHER_SCHEMA_STATS('SYS');
SQL> EXEC DBMS_STATS.GATHER_FIXED_OBJECTS_STATS(NO_INVALIDATE => FALSE);