Which following statement(s) about SAS names is/are correct? Check all that apply. A. A SAS variable...

Which following statement(s) about SAS names is/are correct? Check all that apply. A. A SAS variable name starts with a letter or an underscore and continues with any combination of numbers, letters, or underscores as the same as library reference names and data set names. B. A SAS library references name must be 8 characters or less and begin with a letter or an underscore. C. A SAS data set names are 1 to 32 characters in length and are not case sensitive.

Expert Solution

Answer: Option B and C are correct.

Explanation :

A SAS name is a token that represents:

variable
data set
format
informat
procedure
option
statement label
libref or fileref
catalog entry
array
macro or macro variable
component object

Rules for the SAS names (variable names, data set names, library reference names, etc) :

The first character must be an English letter or underscore and subsequent characters can be letters, numeric digits, or underscores.
User-defined format names cannot end in a number.
Blanks cannot appear here and special characters, except for the underscore, are not allowed. In filerefs only, you can use the dollar sign ($), the number sign (#), and the at sign (@).

According to the above rules,

Variables start with a letter or underscore and continue with any combination of the numbers, letters, or underscores as the same as library reference names and data set names. But the name of the variable should contain 32 characters. So this statement is incompletely explained in Option A. So, option A is eliminated.
Library reference names have a length of 8 Bytes i.e it can contain characters less than equal to 8 characters and according to the above rules it should start with a letter or underscore. So, Option B is correct.
The length of the data set name is 32 Bytes. It can contain 1 to 32 characters.
SAS converts all the characters in the data set name directly to uppercase. So, Cat and CAT has no difference. So, data set names are not case sensitive
The above two statements tell us that option C is correct.
From above all discussions, options B and C are correct.

venereology answered 1 year ago

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