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SAS Companion for the OS/390 Environment

Using the INFILE/FILE User Exit Facility

User exit modules enable you to inspect, modify, delete, or insert records in a DATA step. Here are some examples of how they may be used:

encrypting and decrypting data
compressing and decompressing data
translating data from one character-encoding system to another.

This is an advanced topic. See Sample Program for details.

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