RPG 4

Note that RPG IV can do just about anything that could be done by earlier versions of RPG such as RPG/400 and an enormous volume of additional capabilities.

Fully free RPG

• Free-format RPG on DeveloperWorks
  • 7.2: Integrated with the base OS
  • 7.1: Requires compiler PTF SI51094 or its supercedes, as well as DB2 group PTF SF99701 level 26 or higher.
  • 7.1 PTF first became available in Nov 2013.

References

RPG IV with free format op codes

• Built In Functions
• Program To System Fields
• Function Key AID Bytes
• Free form calculation specifications

Books on RPG IV

• PDF of Who Knew You Could Do That with RPG IV? A Sorcerer's Guide to System Access and More (SG245402) at IBM Redbooks

Data Structure Information

• Program Status Data Structure
• Workstation Data Structure

Code Samples

• Locate field value field name
• SQLSTATE Constants

FAQ

• What does BINARY(4) mean in API documentation?

External Links

• Midware http://midwareservices.com/RPGIV/intro.htm
• Bryan Meyers http://www.bmeyers.net/