583.During recovery, you need to know if log sequence 11 is in the online redo logs, and if so, you need to
know the names of the online redo logs so you can apply them during recovery.
Which view or views would you use to determine this information? (Choose all that apply.)
A. V$LOGFILE
B. V$RECOVER_LOG
C. V$RECOVER_DATABASE
D. V$LOG_RECOVER
E. V$LOG
Answer: AE
答案解析：
可以从SEQUENCE# 看出当前所有日志的 SEQUENCE， 根据GROUP#在v$logfile找出member
sys@TEST1107> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIME NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- ------------------ ------------ ------------------
1 1 43 52428800 512 2 YES INACTIVE 1691556 09-NOV-13 1712026 09-NOV-13
2 1 44 52428800 512 2 NO CURRENT 1712026 09-NOV-13 2.8147E+14
3 1 42 52428800 512 2 YES INACTIVE 1673515 09-NOV-13 1691556 09-NOV-13