l****a
发帖数: 192 | 1 是advance 63题中的61题目
In a data step merge, the BY variables n all data sets must have the same:
A. name.
B. name and type.
C. name and length.
D. name, type, and length.
答案是Ｂ，还是Ｄ呢？谢谢 | k*******a
发帖数: 772 | | g**2
发帖数: 301 | | i****e
发帖数: 151 | 4 B.如果LENGTH不一样会出现WARNING，但还是会MERGE |
|
