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执行语句alter tablespace system offline;会得到什么结果?()
A. System表空间offline,数据库正常运行
B. System表空间offline,数据库会shutdown abort
C. 执行会报错
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更多 “ 执行语句alter tablespace system offline;会得到什么结果?() A. System表空间offline,数据库正常运行B. System表空间offline,数据库会shutdown abortC. 执行会报错 ” 相关考题
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A.编译报错B.LiLeihelloC.LiLeihelloD.无任何输出
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An administrator is planning to bring a newly purchased server online. Which of the following should the administrator do FIRST?（）A、Follow the pre-installation plan and procedures.B、Review the system logs to check for errors.C、Notify all users that the old system will be taken offline.D、Apply all security updates to the system.
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如何强制执行日志切换（）A、ALTER SYSTEM CHECKPOINT;B、ALTER SYSTEM CHECKPOINT FORCE;C、ALTER SYSTEM SWITCH LOGFILE;D、ALTER SYSTEM SWITCH LOGFILE FORCE;E、ALTER DATABASE LOG SWITCH;
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You have lost all your SYSTEM tablespace datafiles （system_01.dbf and system_02.dbf） nd the database has crashed. What would be the appropriate order of operations to correct the situation？（） a. Mount the database with the startup mount command. b. Take the SYSTEM datafile offline with the alter database command. c. Restore the SYSTEM_01.dbf datafile from backup media with the required archived redo logs. d. Restore all SYSTEM tablespace-related datafiles from backup media. e. Issue the recover tablespace SYSTEM command. f. Issue the recover datafile SYSTEM_01.dbf command. g. Open the database with the alter database open command. h. Open the database with the alter database open resetlogs command.A、a， c， f， gB、b， d， e， hC、a， b， c， f， gD、d， a， e， gE、b， c， f， e， g
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以下哪类表空间中不能建立数据对象（表，索引）（）A、SYSTEM表空间和非SYSTEM表空间B、UNDO表空间和Temporary表空间C、SYSTEM表空间和Temporary表空间D、SYSTEM表空间和UNDO表空间E、SYSTEM表空间，UNDO表空间和Temporary表空间
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Which of the following represents the correct way to perform an online recovery of datafile 4， which is assigned to a tablespace called USERS？（） A、 shutdown restore datafile 4； recover datafile 4； alter database open；B、 Sql alter database datafile 4 offline； restore datafile 4； recover datafile 4； alter database open；C、 Sql alter database datafile 4 offline； restore datafile 4； Sql alter database datafile 4 online；D、 Sql alter database datafile 4 offline； restore database datafile 4； recover database datafile 4；Sql alter database datafile 4 online；E、 Sql alter database datafile 4 offline； restore datafile 4； recover datafile 4； Sql alter database datafile 4 online；
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Two data files have been deleted at the operating system level by accident. Your database is running in ARCHIVELOG mode and online backups are taken nightly. One of the data files that has been deleted belongs to the USERS tablespace on the other belongs to the SYSTEM tablespace. How can you recover from this situation？（）A、Shut down the database, restore the two data files and then start up the database. B、Take the system and users tablespace offline, restore the two data files, recover the two datafiles, and then bring the SYSTEM and USERS tablespaces online. C、Shut down the database, restore the two data files, start up the database in MOUNT mode, recover the two data files, and then alter the database open. D、Take the SYSTEM and USERS tablespaces offline, recover the two datafiles and then bring the SYSTEM and USERS tablespaces online.
考题
单选题Twenty database users are connected to your database. Five of the users are running long queries involving sort operations. The TEMP tablespace is the default temporary tablespace for your database. You are performing offline tablespace backups of individual tablespaces and erroneously execute the following statement： SQLALTER TABLSPACE temp OFFLINE NORMAL； What is the result of this statement？（）A
The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are disconnected after their queries complete.B
The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are disconnected and must re-execute their queries.C
The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are not disconnected， but these users must re-execute their queries.D
The TEMP tablespace is not taken offline. The users using the TEMP tablespace for sorting are not disconnected， and their queries execute successfully.
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