31、Which two events always request the LGWR to write?
A) when LGWR is notified by a server process that performs a Commit or ROLLBACK
B) When PMON restarts a server process
C) when DBWn writes dirty buffers
D) when a log switch occurs
E) when a checkpoint occurs
Answer:CD
原文地址:http://blog.51cto.com/13854012/2153510
时间: 2024-10-03 09:32:53