A flat file is a physical file without DDS (Data Description Specification) and having a record length.
The CRTPF command is used to create a Flat File object since this file does not have any field definitions i.e. DDS so record length is used instead.
CRTPF FILE(EASYCLASS1/FLATFILE1) RCDLEN(100)
|CREATE FLAT FILE IN AS400 USING CRTPF COMMAND|
DSPFFD on Flat File
Flat file name, a Record format name, field name are all same in the flat file. The record length provided at the time of creating flat file becomes its field length
Flat file field list from STRSQL session.
Just for your information We can perform the I/O operations such as Write, Read, Chain-Delete, Chain-Update on the flat files, and the flat file are defined as the program described files in RPG programs.
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