Did you know you can have the user select one set of values on user-defined commands, yet have your program receive a totally different set of values? This is helpful when you need to interrupt what the user selected into "Program Logic". Below is an example that asks the user what type of report they want.
CMD PROMPT('Activity Reports') PARM KWD(RTYPE) TYPE(*CHAR) LEN(1) RSTD(*YES) + DFT(*ACTIVITY) VALUES(1 2 3) + SPCVAL((*ACTIVITY 1) (*MOVEMENT 2) + (*ADJUSTMENT 3)) MIN(0) PROMPT('Type of Report')
When the user enters *MOVEMENT, the called program will receive a "2". Now a simple select statement will produce the requested report. This is much easier for the user to understand which report they are selecting.
About the author: John Kohan is a senior programmer analyst at CT Codeworks.
================================== OTHER PROGRAMMER TIPS ==================================
- Accessing any job's QTEMP
Finally there is a way to run commands on any job, batch or online and without any cumbersome pre-requisites.
- Editing a source member without SEU
You can editing a source member without SEU if your iSeries 400 is on V4R4 or later by using the EDTF command. This command is typically used for editing files in the iSeries integrated file system, but you can also use it to edit a source member.
- All 256 possible values of a character
Here's an RPG program to list all 256 possible values of a character along with binary representation.
This was first published in April 2002