I can give you a wee bit o’ info on this.
FMTDTA was originally created by IBM to assist users moving from the System/3 to the System/38, the forerunner of the AS/400 – i Series family. It helped users format and sort their data for conversion. The command worked so well that some continued to use it to select and sort data as they developed software.
Its rare to see it used today. With all the modern tools now available on the i Series there are a number of superior alternatives.
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enter FMTDTA at a command line and press F4, place the cursor on the title and press F1. Read the screen
use the F13 key for ‘more information’ and follow the link provided.
– same on all commands –