question 72
The following SAS program is submitted:
data work.test;
First = 'Ipswich, England';
City = substr(First,1,7);
City_Country = City!!', '!!'England';
run;
Which one of the following is the value of the variable CITY_COUNTRY in the output data set?
A. Ipswich!!
B. Ipswich, England
C. Ipswich, 'England'
D. Ipswich , England
为什么答案是D???? ，前面那个空格是从哪里来的？
question 79
the following SAS program is submitted:
data work.products;
Product_Number = 5461;
Item = '1001';
Item_Reference = Item||'/'||Product_Number;
run;
Which one of the following is the value of the variable ITEM_REFERENCE in the output data set?
A. 1001/5461
B. 1001/ 5461
C. . (missing numeric value)
D. The value can not be determined as the program fails to execute due to errors.
为什么答案是B???? /后面那个空格是从哪里来的?
完全晕了，求解答！！多谢！！
扫码加好友，拉您进群
全部版块
我的主页
收藏
