December 2014
Intermediate to advanced
858 pages
40h 10m
English
Content preview from SAS Certification Prep Guide, 4th Edition
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Reducing Data Storage Space for Character Variables
One
way to reduce data storage space, which also reduces I/O, is to reduce
the length of character variables, potentially eliminating wasted
space. Before discussing how to reduce the length of a character variable,
consider how SAS assigns lengths to character variables.
Reducing the Length of Character Data with the LENGTH Statement
You can use a LENGTH statement to control the length
of character variables.
|
General form, LENGTH
statement for character variables:
LENGTH variable(s) $ length;
variable(s)
specifies the name
of one or more SAS variables, separated by spaces.
length
is an integer from 1 to 32,767 that specifies the length of ... |
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