December 2014
Intermediate to advanced
858 pages
40h 10m
English
Content preview from SAS Certification Prep Guide, 4th Edition
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Summary
Reducing Data Storage Space for Character Variables
SAS
stores character data as one character per byte. You can use the LENGTH
statement to increase or reduce the length of a character variable.
You can also use other coding techniques to reduce the space that
is needed for storing your character data.
Reducing Data Storage Space for Numeric Variables
SAS stores numeric data
in floating-point representation. The default length for a numeric
variable is 8 bytes. You can use a LENGTH statement to reduce the
length of a numeric variable. Reading reduced-length numeric variables
requires less I/O but more CPU resources than reading full-length numeric variables. You can use PROC COMPARE to see the precision loss, if any, in the values ...
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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.