SAS data files are of the type DATA. Note: In the SAS System, the term "data set" is used to refer to both SAS data files, which contain data and data set descriptor information, and to SAS data views ...

SAS processes names as uppercase regardless of how you type them. Blanks cannot appear in SAS names. Special characters, except for the underscore, are not allowed. In filerefs only, you can use the ...