When we run SAS® programs that use large amounts of data or have complicated algorithms, we often are frustrated by the amount of time it takes for the programs to run and by the large amount of space required for the program to run to completion. In this 20-minute tutorial, you'll learn 20 techniques that can reduce the time and space required for a program without requiring an extended period of time for the modifications. They're a mixture of space-saving and time-saving techniques, and many are a combination of the two approaches. They do not require advanced knowledge of SAS, only a reasonable familiarity with Base SAS and a willingness to delve into the details of the programs.
02:18 - 4 efficiency approaches
03:06 - How to reduce the number of observations and variables
09:18 - Helpful sorting efficiencies
11:39 - How to reduce variable size
15:51 - How to reuse system space
18:35 - Advantage of using LIBNAME
Techniques for optimizing I/O (documentation)
Efficient Use of Disk Space in SAS Application Programs (2018 SESUG paper)
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