How do you represent a blank in SAS?

In SAS code, a blank is typically specified by enclosing a space between two quotation marks, such as “ “ or ‘ ‘. With numeric variables, a missing value is denoted with a period. In SAS code, the period [.] is specified by simply using the period with no quotation marks or parentheses around it.

What is a null value in SAS?

A null value means that a real value is unknown or nonexistent. That is, no data is assigned to the column in that specific row. A null value is not a zero or a blank. A null value is represented by SAS Federation Server either as a SAS missing value or an ANSI SQL null value: SAS missing value.

Is blank function in SAS?

Checks if an argument contains a blank, empty value. When the argument value is blank, the function returns true. Otherwise, it returns false.

What is a missing value in SAS?

The MISSING function enables you to check for either a character or numeric missing value, as in: if missing(var) then do; In each case, SAS checks whether the value of the variable in the current observation satisfies the condition specified. If it does, SAS executes the DO group .

Is missing and is null?

The IS MISSING and IS NULL operators, which are used with a WHERE statement, can handle character or numeric variables. They also work with the NOT operator: *** create a sample dataset with some missing values; data makemissing; set sashelp.

IS null function in SAS?

Checks if an argument value contains a null value. When the argument value is null, the function returns true. Otherwise, it returns false.

How do you remove blank cells in SAS?

1. Method I: Removes complete row where all variables having blank/missing values. OPTIONS missing = ‘ ‘ ; data readin; SET outdata; IF missing(cats( of _all_))
2. Method II: Removes only that rows where any of the variable has missing/blank values. data readin; SET outdata; IF cmiss( of _character_)

How do you set null values in SAS?

Re: SAS SQL: Setting values to NULL To represent a missing numeric value use a period. For a missing character value then just use a string literal that only contains blanks. proc sql ; select name ,age,case when name=’Alice’ then .