How to use Truncated String Comparison Operators In Proc SQL?
The dataset can use the Truncated String Comparison Operators (such as =:, >:, and <=:) for truncated string comparisons. However, you find that the Colon operator is not available in PROC SQL. In Proc SQL, you can use the Truncated String Operators such as EQT, GTT, LTT, GET, LET and NET.