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ATTRIB statement
For information about how the ATTRIB statement enables you to assign attributes to variables, see “ATTRIB Statement” in SAS Statements: Reference.
DBMS access
This documentation explains how to use SAS for reading files of raw data and SAS data sets and writing to SAS data sets. However, SAS documentation for SAS/ACCESS provides complete information about using SAS to read and write information stored in several types of database management system (DBMS) files.
Informats
For a discussion about informats that you use with dates, see Working with Dates in the SAS System.
Length of variables
For more information about how a variable's length affects the values that you can store in the variable, see ...

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