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标题: 跟crakman做sas base认证试题（51） [打印本页]

作者: shiyiming 时间: 2010-11-13 01:32
标题: 跟crakman做sas base认证试题（51）
From crackman's blog on Baidu

51.The following program is submitted: 
 
 proc contents data=_all_; 
 run; 
 
Which statement best describes the output from the submitted program? 
     A. The output contains only a list of the SAS data sets that are contained in the WORK library. 
     B. The output displays only the contents of the SAS data sets that are contained in the WORK library. 
     C. The output displays only the variables in the SAS data sets that are contained in the WORK library. 
     D. The output contains a list of the SAS data sets that are contained in the WORK library and displays the contents of those data sets. 
 
Answer: D
本题考察的是PROC CONTENTS。 
答案为D，具体可以在运行该语句后得到结果。 
包括了：list也就是WORK下的数据集的目录；然后每一个数据集的contents，里面包括variables等信息。 
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