January 2018
Beginner to intermediate
582 pages
25h 3m
English
Content preview from SAS Certification Prep Guide, 4th Edition
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Chapter 21: Creating Multiple Observations from a Single Raw Data Record
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Correct answer: dThe double trailing at-sign (@@) enables the next INPUT statement to read from the current record across multiple iterations of the DATA step. It must be the last item specified in the INPUT statement. A record that is being held by the double trailing at-sign (@@) is not released until the input pointer moves past the end of the record, or until an INPUT statement that has no line-hold specifier executes.
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Correct answer: bUnlike the double trailing at-sign (@@), the single trailing at-sign (@) is automatically released when control returns to the top of the DATA step for the next iteration. The trailing @ does not toggle on and off. If another ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.