下列建筑钢筋的力学性能中,反映建筑钢材()的指标包括屈服强度、抗拉强度和伸长率。
A.拉伸性能
B.冲击性能
C.屈服性能
D.疲劳性能
第1题
A.shutdown -d
B.shutdown -s
C.shutdown -m
D.shutdown -Fr -s 1
第2题
A. set Flash Recovery Area
B. enable Flashback logging
C. create FLASHBACK tablespace
D. start the database in the ARCHIVELOG mode
E. start the database in the NOARCHIVELOG mode
第3题
A.Full
B. Differential
C. Incremental
D. Database
第4题
A. Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace.
B. Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online.
C. Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.
D. Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode.
第5题
The relational database model requires the data be(110)through programs that don't rely on the position of the data in the database. This is in direct(111)to the other database mode, where the program has to follow a series of pointers to the data it seeks. A program(112)a relational database simply asks for the data it seeks; the DBMS performs the necessary searches and(113)the information. The(114)on how the search is done are specific to the DBMS and vary from product to product.
A.accessed
B.moved
C.read
D.wrote
第6题
A.init 0
B.telinit m
C.shutdown -FM
D.sh /etc/rc.maint
第7题
The relational database model requires the data be(71)through programs that don't rely on the position of the data in the database. This is in direct(72)to the other database mode, where the program has to follow a series of pointers to the data it seeks. A program(73)a relational database simply asks for the data it seeks; the DBMS performs the necessary searches and(74)the information. The(75)on how the search is done are specific to the DBMS and vary from product to product.
A.accessed
B.moved
C.read
D.wrote
第8题
A. The database must be in ARCHIVELOG mode
B. The database must be in MOUNT EXCLUSIVE mode
C. The database must be opened in RESTRICTED mode
D. The database instance must be started in the NOMOUNT state
E. The database instance must have the keep buffer pool defined
第9题
A. The database must be in ARCHIVELOG mode
B. The database must be in MOUNT EXCLUSIVE mode
C. The database must be opened in RESTRICTED mode
D. The database instance must be started in the NOMOUNT state
E. The database instance must have the keep buffer pool defined
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