Logical databases 
Description
New functions
- Checkbox parameter (PARAMETERS AS CHECKBOX)
- Matchcode selection (PARAMETERS AS MATCHCODE STRUCTURE)
- Self-programmed help (F1) and possible entries (F4) on selection
screens (HELP-REQUEST and VALUE-REQUEST with SELECT-OPTIONS and PARAMETERS)
- Date calculations in variants
Further notes
Online documentation:
- ABAP/4 key words PARAMETERS and SELECT-OPTIONS
- ABAP/4 environment NEWS-30, logical databases section