Time Picker控件24小时设定的方法是?()
第1题:
A. You cannot update a view with group functions.
B. When you update a view group functions are automatically computed.
C. When you update a view only the constraints on the underlying table will be in effect.
D. When you update a view the constraints on the views always override the constraints on the underlying tables.
第2题:
类time可以输出12小时或24小时制的时间,现需要设计一个缺省构造函数,缺省值为0时0分0秒。该缺省构造函数为______。
include<iostream.h>
class Time
{
int h,m,s;
public:
Time(int hour=0,int min=0,int sec=0){settime(hour,min,sec);}
void settime(int hour,int min,int sec){h=hour;m=min;s=sec;}
void show24( )
{ cout<<(h<10?"0":"")<<h<<":"<<(m<10?"0":"")<<
m<<":"<<(s<10?"0":"")<<s<<endl;
}
void showl2( )
{ int temp=(h= =0 || h= =12)? 12:h%12;
cout<<(temp<10?"0":"")<<temp<<":"<<(m<10?"0":"")
<<m<<":"<<(s<10?"0":"")<<s<<((temp>0&&h<12)?"
AM":"PM")<<endl;
}
};
void main( )
{
Time t(15,43,21);
t.showl2( );
t.show24( );
}
第3题:
A、an half hour’s
B、half an hour
C、half an hour’s
D、half a hour’s
第4题:
Yesterday we had () talk.
第5题:
The vehicle was traveling at speeds______90 miles per hour.
A.in addition to
B.in view of
C.in excess of
D.in search of
第6题:
● 设有职工表emp(Eno,Ename,Sex,Age)(Eno为职工号,Ename为职工姓名,Sex为性别,Age为年龄)和salary(Eno,Hour,Month,Wage)(Hour为工作时长为多少小时,Month表示几月份,Wage为薪水),建立一个视图V-Salary(Eno,Ename,Hour,Month,Wage),并按Eno升序排序的SQL语句为:
(1)CREATE ( )
AS SELECT emp.Eno,emp.Ename ,salary.Hour,salary.Month,salary.Wage
FROM emp, salary
WHERE emp.Eno=salary.Eno
ORDER BY ENO
在此视图上查均月工资在3000以上的职工工资情况的SQL语句为:
SELECT Eno,Ename,AVG(Wage)
FROM V-Salary
GROUP BY ( )
HAVING AVG(Wage)>3000
( )
A. CREATE TABLE V-Salary(emp.Eno,emp.Ename,salary.Hour,salary.Month,salary.Wage)
B. CREATE VIEW V-Salary(Eno,Ename,Hour,Month,Wage)
C. CREATE TABLE V-Salary(Eno,Ename,Hour,Month,Wage)
D. CREATE INDEX V-Salary(Eno,Ename,Hour,Month,Wage)
( )
A. Eno B.Ename
C.Month D.Wage
第7题:
A.When view V1 is created
B.Each time the REFRESH VIEW v1 statement is executed
C.Each time an SQL statement is executed against view V1
D.Only the first time an SQL statement is executed against view V1
第8题:
A、three quarters of an hour time
B、three quarter's of an hour time
C、three quarters of an hour's time
D、three quarters'of an hour's time
第9题:
Yesterday we had () talk.
Aone and a half hour’s
Bone and a half hour
Can hour and a half’s
Dan hour’s and a half
第10题:
ODMC创建报告时的最大时间间隔为()