docs / RPG Reference Input Specification Logical Relationship Input Specification Logical Relationship Positions 16-18 (Logical Relationship) AND Relationship OR Relationship Positions 21-22 (Record Identifying Indicator, or **) Indicators Lookahead Fields Positions 23-46 (Record Identification Codes) Positions 23-27, 31-35, and 39-43 (Position) Positions 28, 36, and 44 (Not) Positions 29, 37, and 45 (Code Part) Character (C) Zone (Z) Digit (D) Positions 30, 38, and 46 (Character) ← Previous Input of Null-Capable Fields Next → Input Specifications Field Layout