How do I get rid of extra space in SAS?
Sometimes, a string variable can have many words in it and extra spaces between the words. The easiest way to get rid of the extra spaces is to use SAS function compbl.
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 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.
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 .
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.
Is SAS missing or null?
when comparing a blank space, SAS mode interprets the blank space as a missing value. In ANSI mode, a blank space is a blank space, it has no special meaning….Differences between Processing Null Values and SAS Missing Values.
| Attribute or Behavior | ANSI SQL Null value | SAS Missing Values |
|---|---|---|
| collating sequence order | appears as the smallest value | appears as the smallest value |
What is does not equal in SAS?
2 In a WHERE expression, the symbol representation <> is interpreted as “not equal to”. If missing values are part of the comparison, SAS uses the sorting order for missing values that is described in Order of Missing Values.
What is Compbl in SAS?
Details. The COMPBL function removes multiple blanks in a character string by translating each occurrence of two or more consecutive blanks into a single blank. The value that the COMPBL function returns has a default length of 200. You can use the LENGTH statement, before calling COMPBL, to set the length of the value …
What is CATX in SAS?
Removes leading and trailing blanks, inserts delimiters, and returns a concatenated character string. Category: Character.