subscript

An integer value to access a single part or element of certain data structures like strings and arrays. In 4GL, the subscript operator is an integer value, surrounded by brackets ( [] ). For example, the syntax strng[3] accesses the third character of the CHAR string variable by specifying a subscript (or index) of 3; the syntax pa_customer[5] accesses the fifth element of the pa_customer program array. Two subscripts allow you to specify the starting and ending characters. For example, strng[3,10] accesses the third through tenth characters of strng.

See also array, character, program array, string, string operators, substring.