321.True or false: RMAN offers the equivalent of the SQL command alter database backup controlfile to
trace.
A. True
B. False
Answer: B
答案解析：
sqlplus下：
sys@TEST1107> alter database backup controlfile to trace;
Database altered.
rman下报错。所以错误。
RMAN> alter database backup controlfile to trace;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-00558: error encountered while parsing input commands
RMAN-01009: syntax error: found "backup": expecting one of: "mount, open"
RMAN-01007: at line 1 column 16 file: standard input