Real-time applications of Multi format logical files

315 pts.
Tags:
AS/400
AS/400 logical file
Could you please where do we use Multi-format logical files in real time applications. I would mean that I would like to know the scenarios where do we exactly use Multi format logical files...

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In a conversion effort the records were similar size but had a record type that indicated which record was read. You would have a header or several header records for an order indicating:
Billing account#, address and shipping address,
Shipping instructions
Order Item detail
Item Bill of Material
Multiple serial#
Order total records

Usually the conversion effort separated theses individual records into separate database files. One quick way to bring the conversion along was to use a multiformat logical where the records would “appear” in the correct sequence. Listing , Invoice and shipping documents would use the multiformat logical so the rewrite effort could be minimized.

The rewrite effort could determine which program actually used the record infomation.
Inventory might not need shipping information but would need to use bill of matierial for proper inventory of the components.

Serial # records might be critical information to a product recall or warranty items.

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  • Splat
    Depends on what you're trying to accomplish. A bit more detail might be helpful.
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  • philpl1jb
    This is a more mature bit of the 400. It provided a work-around to the file limiations of the previous version of RPG (RPG III or RPG/400). Phil
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  • TomLiotta
    ...where do we use Multi-format logical files in real time applications. There really isn't any real use any more, other than to handle old files. It's a possible technique that might be useful for importing records from other platforms in some cases. I haven't seen it for a couple decades. Tom
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