You can compare only a specified prefix of a character string by using a colon (:) after the comparison operator. In the following example, the colon modifier after the equal sign tells SAS to look at ...

Group V operators are comparison operators. The result of a comparison operation is 1 if the comparison is true and 0 if it is false. Missing values are the lowest in any comparison operation. The ...

Deciding which operator to use ultimately depends on the context of your command and what you are trying to achieve. Just remember that you are working with objects and strive for economy and ...