RPG/400
From MidrangeWiki
Note that
- RPG/400 can do just about anything that earlier versions of RPG such as RPG III could do and a whole lot more,
- while RPG 4 can do just about anything that RPG/400 could do and a whole lot more.
New stuff as of RPG/400
This is from the perspective of someone moving from RPG on S/36 SSP to RPG on the 400. Some of these capabilities may have existed with RPG on S/38.
- External File Definition Support. Previously we just had Internal File Definitions.
- Many new structured programming capabilities in conjunction with IFxx
- Concatenation and Substringing
- CALL a sub-program
- Output an interactive screen to the users, then read it back in and act on the data provided