Multiple choice technology databases

What is command code 'P'?

  1. path call

  2. path call ignore

  3. set parentage

  4. Concatenated key

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Command code 'P' in IMS DL/I stands for 'Set Parentage' and is used to establish or modify the parent-child relationship in segment navigation. This command code is essential for controlling hierarchical relationships when traversing the database structure. It affects how segments are linked in the hierarchy.

AI explanation

In IMS DL/I, command code 'P' (parentage) is used to establish or reset the position (parentage) within a hierarchical database so subsequent calls are relative to that segment. "Path call" and "path call ignore" correspond to different command codes (like 'D' and 'N'), and 'P' is not related to concatenated keys.