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.

The truncated string comparison operator is used to compare two strings. The difference between PROC SQL and conventional comparison operators is that it trims the longer string to the same length as the shorter string before executing the comparison.

Both operands remain unchanged when the truncation is performed internally. The following table lists the truncated comparison “operators”:

Truncated String Comparison Operators

The following example returns a list of Countries that have 'CO' at the beginning of their “names”:

proc sql;
Title "List of countries beginning with the characters'CO'";
    select Name from sashelp.demographics where Name eqt 'CO';
quit;

“Output”:


The following example returns a list of countries that have 'U' to ’Z’ at the beginning of their “names”:

proc sql;
Title 'List of countries beginning with the letter 'U' and later';
    select Name from sashelp.demographics where Name get 'U';
quit;

“Output”:

Truncated String Comparison Operators

So, this was our side on Truncated String Comparison Operators In Proc SQL. We hope that you must have found it helpful.

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