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[单选] You specify a nonzero value for the MEMORY_TARGET initialization parameter, but do not set thePGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance.Which statement about the result is true?()

A . The database instance starts, and Oracle sets the default value of SGA_TARGET to the same value as SGA_MAX_SIZE
B . The database instance starts, and Oracle automatically tunes memory and allocates 60 percent to the SGA and 40 percent to the PGA
C . The database instance starts, but Automatic Memory Management is disabled
D . The database instance will not start because you did not specify the PGA_AGGREGATE_TARGET or SGA_TARGET parameter

In which scenario would index be most useful? () The indexed column is declared as NOT NULL.。 The indexed columns are used in the FROM clause.。 The indexed columns are part of an expression.。 The indexed column contains a wide range of values.。 世界上第一个互联网络应用与行为规范是德国1997年颁布的() 《数据保护法》。 《多媒体法》。 《计算机欺诈法》。 《信息技术法》。 吸引人们创业当老板的动机有哪些? A customer is building a database server, and the server does sequential write most of the time.  They are planning to use an IBM x445 and a ServeRAID-6M adapter.  Which of the following fault tolerant RAID levels will perform best for sequential write?() RAID-5 with cache write back。 RAID-1E with cache write back。 RAID-10 with cache write thru。 RAID-50 with cache write thru。 影响房地产价格的经济因素具体是指()。 经济发展因素。 产业结构因素。 财政金融因素。 社会福利因素。 You specify a nonzero value for the MEMORY_TARGET initialization parameter, but do not set thePGA_AGGREGATE_TARGET or the SGA_TARGET parameters. You restart your database instance.Which statement about the result is true?()
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