标题: 跟crakman做sas base认证试题(67) [打印本页] 作者: shiyiming 时间: 2010-11-13 17:40 标题: 跟crakman做sas base认证试题(67) From crackman's blog on Baidu
<p><font size="4" face="宋体">69.Given the data set WORK.EMPDATA:<br>
<br>
Employee_ Manager_<br>
ID Job_Title Department ID<br>
------- ---------------------- ---------------- ------<br>
120101 Director Sales Management 120261<br>
120102 Sales Manager Sales Management 120101<br>
120103 Sales Manager II Sales Management 120101<br>
120104 Administration Manager Administration 120101<br>
120105 Secretary I Administration 120101<br>
<br>
Which one of the following where statements would display observations with job titles containing the word 'Manager'? <br>
A. where substr(Job_Title,(length(Job_Title)-6))='Manager'; <br>
B. where upcase(scan(Job_Title,-1,' '))='MANAGER';<br>
C. where Job_Title='% Manager '; <br>
D. where Job_Title like '%Manager%'; </font></p>
<p><font size="4" face="宋体">Answer: D</font></p>
<p><font size="4" face="宋体">答案是D<br>
WHERE在做筛选数据时的,LIKE是检查数据是否满足某一样式。<br>
%可以替代任意数量的字符。</font></p>
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