SAS Base Certification Exam | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+
SAS Library : -a collection of SAS files -highest level of organization for information within SAS -only the files that have SAS file extensions are recognized as part of the SAS library. Work Library : a temporary library for files that do not need to be saved from session to session. all of its files are deleted when you end the session Define library : libname clinic 'c:UsersNamesasuser'; one-level name (the filename only) : the default libref Work is assumed 2 | P a g e libref name : 8 characters long SAS data set + variable names : 1. can be 1 to 32 characters long 2. must begin with a letter (A-Z, either uppercase or lowercase) or an underscore (_) Descriptor of Data Set : • the name of the data set • the date and time that the data set was created • the number of observations • the number of variables. Types of variables : Character (anything) or numeric (numbers only) Missing values, " " for character or "." for numeric Variable length : Character variables can be up to 32,767 bytes long. All numeric variables have a default length of 8 bytes
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