December 2014
Intermediate to advanced
858 pages
40h 10m
English
Content preview from SAS Certification Prep Guide, 4th Edition
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Using the SASFILE Statement
Overview
Another
way of improving performance is to use the SASFILE statement to hold
a SAS data file in memory so that the data is available to multiple
program steps. Keeping the data file open reduces I/O processing and
open/close operations, including the allocation and freeing of memory
for buffers.
|
General form, SASFILE
statement:
SASFILE SAS-data-file <(password-option(s))> OPEN
| LOAD | CLOSE;
SAS-data-file
is a valid SAS data
file (a SAS data set with the member type DATA).
password-option(s)
specifies one or more
password options.
OPEN
opens the file and allocates the buffers, but defers reading the data into memory until a procedure or statement is ... |
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