![](http://static.sotiji.com/static/index/img/ques_detail.png)
Which statements are true regarding table compression? ()(Choose all that apply.)
AIt saves disk space and reduces memory usage.
BIt saves disk space but has no effect on memory usage.
CIt incurs extra CPU overhead during DML as well as direct loading operations.
DIt incurs extra CPU overhead during DML but not direct loading operations.
EIt requires uncompress operation during I/O.
![](http://static.sotiji.com/static/index/img/search_middle.png)
![](http://static.sotiji.com/static/index/img/xqques.png)
相关问题推荐
下面程序应能对两个整型变量的值进行交换。以下正确的说法是
main()
{int a=10,b=20;
printf("(1)a=%d,b=%d\n",a,b);
swap(&a,&b);
printf("(2)a=%d,b=%d\n",a,b);
}
swap(int p,int q)
{int t;
t=p;p=q;q=t;
}
A.该程序完全正确
B.该程序有错,只要将语句swap(&a,&b);中的参数改为a,b即可
C.该程序有错,只要将swap()函数中的形参p和q以及t均定义为指针(执行语句不变)即可
D.以上说法都不对
下列程序的输出结果是()。
maim ()
{char b []="Hello you";
b[5]=0;
printf ("%s\n",b);}
以下程序的输出结果是 【11】 。
int fun(int x,int y,int *p,int *q)
{ *p=x*y;
*q=x/y;}
main()
{int a,b,c,d;
a=4;b=3;
fun(a,b,&c,&d);
printf("%d,%d\n",c,d);}
病情观察中,可能提示肝性脑病的最早的临床表现是()
A、定向力障碍
B、性格改变和行为失常
C、睡眠障碍
D、神志丧失
E、昏睡
Which OSPF router will advertise a Type 2 network LSA for a broadcast network segment?()
A、 A
B、 B
C、 C
D、 D