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This reference guide gives us a tour of 100 of the most important, common, unusual, and intriguing compounds known to science. Each entry gives an extensive ...

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Note added at 11 hrs (2022-11-17 12:30:32 GMT)
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9.4 - Permanent Formats | STAT 480
https://online.stat.psu.edu › lesson
5 nov. 2008 —

Note though that when a user-defined informat or format is called by a DATA or PROC step, SAS first looks in a temporary catalog named work.formats. (Recall that "work" is what SAS always treats as your temporary working library that goes away at the end of your SAS session.) If SAS does not find the format or informat in the temporary catalog, it then by default looks in a permanent catalog called library.formats.

Then, upon running the program, SAS creates a permanent catalog containing all of the formats and informats that are defined in the FORMAT procedure and stores it in the folder referenced above, as illustrated here:

Because library.formats is the reserved name for permanent formats catalogs, you can create only one catalog called formats per SAS library (directory).