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标题: 跟crakman做sas base认证试题（6） [打印本页]
作者: shiyiming    时间: 2010-11-11 00:05
标题: 跟crakman做sas base认证试题（6）
From crackman's blog on Baidu


               
                <p><font size="4">6.After a SAS program is submitted, the following is written to the SAS log:<br>
<br>
101&nbsp;&nbsp;&nbsp;  data WORK.JANUARY;<br>
102&nbsp;&nbsp;&nbsp;  set WORK.ALLYEAR(keep=product month num_Sold Cost);<br>
103&nbsp;&nbsp;&nbsp;  if Month='Jan' then output WORK.JANUARY;<br>
104&nbsp;&nbsp;&nbsp;  Sales=Cost * Num_Sold;<br>
105&nbsp;&nbsp;&nbsp;  keep=Product Sales;<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  -----<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  22 <br>
ERROR 22-322: Syntax error, expecting one of the following: !,!!, &amp;, *, **, +, -, , &lt;=, &lt;&gt;, =, &gt;, &gt;=,<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  AND, EQ, GE, GT, IN, LE, LT, MAX, MIN, NE, NG, NL,NOTIN, OR, ^=, |, ||, ~=.<br>
106 run;<br>
<br>
What changes should be made to the KEEP statement to correct the errors in the LOG?</font></p>
<p><font size="4">&nbsp;&nbsp;&nbsp;&nbsp;  A. keep=(Product Sales);<br>
&nbsp;&nbsp;&nbsp;&nbsp;  B. keep Product, Sales; <br>
&nbsp;&nbsp;&nbsp;&nbsp;  C. keep=Product, Sales; <br>
&nbsp;&nbsp;&nbsp;&nbsp;  D. keep Product Sales;</font></p>
<p><font size="4">Answer: D<br>
本文属于博客：</font><a href="http://hi.baidu.com/crack_man/home"><font size="4"><!-- m --><a class="postlink" href="http://hi.baidu.com/crack_man/home">http://hi.baidu.com/crack_man/home</a><!-- m --></font></a><font size="4"> 版权归作者所有，如有转载，请注明出处！未经本作者同意不得用于商业应用。<br>
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<p><font size="4">本道题考察的是KEEP语句的语法问题<br>
在括号内就是KEEP=<br>
如果不是就是KEEP </font></p> <a href="http://hi.baidu.com/crack%5Fman/blog/item/103e72cf3067b10fbf09e64e.html">阅读全文</a>
               
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