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This should certainly be doable with either the SQL CLI APIs or with the
ILE C _Ropen(), _Rreadn(), etc APIs.
Personally, I find the ILE C APIs quite easy to use -- just as easy as a
program described file in traditional RPG once you learn how. They have
advantages over the program described files, though... the null map is
one. The ability to have the same file open many times, but referenced
by a separate file handle is another. The ability to access the file
randomly by key -- even if the format of the file isn't known at compile
time -- is yet another.
The SQL CLI APIs are another interesting way to solve the problem. They
do a little more of the work for you (such as interpreting fields in an
external definition, converting them to your internal RPG types, etc)
but probably don't perform as well...? Of course, they make it possible
to include CLOBs and DBCLOBs in your CSV output if you like.
Peter Dow (ML) wrote:
And actually (I think you pushed a button of mine wit h the word
"cannot"<g>) I see no reason at all why a null indicator array couldn't
be returned when a program-described record is read.
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