OCP-1Z0-053-200题-41题-620
来源:互联网 发布:微信怎么转换淘宝链接 编辑:程序博客网 时间:2024/06/05 01:55
QUESTION 41
You are using the control file to maintain information about the database backups that are being performed by
Recovery Manager (RMAN).
Identify two scenarios is which you must have a recovery catalog. (Choose two.)
A. To store the backup information of multiple database
B. To restrict the amount of space that is used by the backups
C. To maintain a backup for a certain time is set bythe CONTROL_FILE_RECORD_KEEP_TIME parameter.
D. To list the data files that were in a target database at a given time by using the AT option of REPORT
SCHEMA command.
Answer: AD
同620题:http://blog.csdn.net/rlhua/article/details/19166841
atClause
This subclause specifies a point in time as a time, SCN, or log sequence number. You must be connected to a recovery catalog when issuing a REPORT SCHEMA
command with an AT
clause.
AT SCN
integer
Specifies an SCN.AT SEQUENCE
integer
Specifies a log sequence number. The integer indicates the time when the specified log was first opened. THREAD
integer
Specifies a redo THREAD
number. The integer indicates the time when the thread was first opened.AT TIME
'
date_string
'
Specifies a date (see Example 3-14). The NLS_LANG
and NLS_DATE_FORMAT
environment variables specify the format for the time.Explanation/Reference:
Section: Backup, Recovery & Recovery Manager (RMAN)
SYBEX 1Z0-053 Study Guide, Chapter 5: Using the RMAN Recovery Catalog
Identify situations that will require the RMAN recovery catalog.
Understand that the recovery catalog is largely optional. A recovery catalog will be needed for storing scripts
, and it will be required if you want to store backup records longer than one yearor beyond the setting of
CONTROL_FILE_RECORD_KEEP_TIME.
Oracle Press 1Z0-053 Exam Guide, Chapter 3: Creating and Maintaining an RMAN Catalog
Finally, using a recovery catalog permits you to use the following RMAN commands:
-BACKUP...KEEP UNTIL TIME Keep a backup for a period of time that differs from the configured
retention policy.
-BACKUP...KEEP FOREVER Keep a backup indefinitely or until you manually remove it.
-REPORT SCHEMA...AT Show the structure of the database at a specific time in the past.
- OCP-1Z0-053-200题-41题-620
- OCP-1Z0-051-2015-41题
- OCP-1Z0-053-V13.02-620题
- OCP-1Z0-053-200题-200题-61
- OCP-1Z0-053-200题-1题-677
- OCP-1Z0-053-200题-4题-88
- OCP-1Z0-053-200题-2题-86
- OCP-1Z0-053-200题-3题-87
- OCP-1Z0-053-200题-5题-89
- OCP-1Z0-053-200题-6题-90
- OCP-1Z0-053-200题-7题-91
- OCP-1Z0-053-200题-8题-92
- OCP-1Z0-053-200题-9题-93
- OCP-1Z0-053-200题-10题-94
- OCP-1Z0-053-200题-11题-95
- OCP-1Z0-053-200题-12题-96
- OCP-1Z0-053-200题-13题-97
- OCP-1Z0-053-200题-14题-675
- InetAddress和InetSocketAddress的区别
- 利用dispatch_once创建单例
- JSON和JSONP 实现跨域访问
- 算法训练 区间k大数查询
- Android 利用ListView制作带竖线的多彩表格
- OCP-1Z0-053-200题-41题-620
- SIP服务器的搭建之一 opensips
- Android 菜单(OptionMenu)大全 建立你自己的菜单(即 自定义OptionMenu菜单)
- 寻找图像中的局部极大点
- JSDoc3+Docstrap的使用
- android利用Http下载文件
- 2013全球智能机市场:安卓和iOS份额超九成
- [业务流程图]与[数据流程图]的比较
- UML——用例图