Level-Number (Report Writer)
The level-number indicates the position of a data item in the
hierarchical structure of a report group.
General Format

Syntax Rules
- A level-number is required as the first element in each data
description entry.
- Data description entries subordinate to an RD entry must have
level-numbers 01 through 49 only.
General Rules
- The level-number 01 identifies the first entry in a report group.
- Multiple level 01 entries subordinate to a report description
entry having the level indicator RD do not represent implicit redefinitions of
the same area.