What is the benefit of using Externally Described files
over Internally
Described?
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Answer Posted / brian kelly
substantially less coding, consistent field names.
Only need RPG input specs for externally described files if
you are using the cycle with matching records or level
breaks. Even then, you need only specify the fields thata
re involved in the match or the break. No need to describe
output specs for DB files. Can also describe printer files
externally and display files naturally are described
externally in a file object. At compile time, the compiler
sneaks ino the file object and creates input and output
specs from those files that have the RPG "E" switch turned
on in col 19 of RPG/400. Same facility exists in RPGIV in
another column.
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