SQL processing in RPG programs -- RPG400-L

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Gentlemen and gentlewomen,

At our company the tradition has always been to use embedded SQL for retrieving
data from SQL tables for use in RPG programs.

When I asked why the good old fashioned F spec and opcodes SETLL, CHAIN etc were
not used the response was that null capable fields in the SQL tables made this
an unreliable method to adopt.

Question : Just how well can RPG4 handle null capable input files??

Robert



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