#ibmi hints and tips #16: A small fact about CPYTOSTMF and CPYTOIMPF

I have only recently realised the simple fact that CPYTOSTMF and CPYFRMSTMF work with 'program described files' (as IBM i still, scarily, calls them), i.e. physical files created using CRTPF without DDS, while CPYTOIMPF and CPYFRMIMPF work with proper database files, i.e. physical files created using either DDS or a SQL CREATE TABLE. I'm sure you were all aware of this, but just in case ...