You have the following online redo log configuration: Group Member 1 ’/disk1/oradata/redo01a.log’ 2 ’/disk2/oradata/redo02a.log’ 3 ’/disk3/oradata/redo03a.log’ You decide to multiplex the online redo log groups for recovery of redo log files in case of any disaster. Which two statements will you NOT issue to multiplex the online redo log files?()
ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo01b.log’ TO GROUP 1;
B. ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo01b.log’ TO GROUP 1;
C. ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo02b.log’ TO GROUP 2;
D. ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo02b.log’ TO GROUP 2;
E. ALTER DATABASE ADD LOGFILE MEMBER ’/disk1/oradata/redo3b.log’ TO GROUP 3;
F. ALTER DATABASE ADD LOGFILE MEMBER ’/disk2/oradata/redo3b.log’ TO GROUP3;
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葡萄牙立法机关实行一院制。
A. 正确
B. 错误
在()中首次使用了“民主集中制”的概念。
A. 党的二大党章
B. 《中国共产党第三次修正章程》
C. 党的七大党章
采用调距桨的船舶,螺旋桨特性随H/D变化的规律是()。
A. H/D增大、特性曲线变陡
B. H/D增大,特性曲线变平坦
C. H/D减小,特性曲线变陡
D. H/D减小,特性曲线陡度不变