分享一下我老師大神的人工智慧教程！零基礎，通俗易懂！http://blog.csdn.net/jiangjunshow

也歡迎大家轉載本篇文章。分享知識，造福人民，實現我們中華民族偉大復興！

57. Automatic Shared Memory Management is disabled for your database instance. You realize that there

are cases of SQL statements performing poorly because of repeated parsing activity, resulting in

degradation of performance.

What would be your next step to improve performance?

A.Run the SQL Access Advisor.

B.Run the Memory Advisor for the SGA.

C.Run the Memory Advisor for the PGA.

D.Run the Memory Advisor for the shared pool.

E.Run the Memory Advisor for the buffer cache.

Answer: D  

答案解析：

參考：http://blog.csdn.net/rlhua/article/details/12561191

題意說在ASMM禁用的情況下，sql執行語句情況不好，有很多重複的解析導致效能下降。sql是在共享池執行並解析的。

出現上述情況，原因是共享池的SHARED_POOL_SIZE引數設定太小，建議是執行記憶體指導來重新設定SHARED_POOL_SIZE引數的值。

給我老師的人工智慧教程打call！http://blog.csdn.net/jiangjunshow