Re: Renaming Fields in the D specs

[boldt@xxxxxxxxxx]

Troy wrote:
>Could some please give me a code snippet of how to rename 2 fields out of
a
>record format using
>the D specs instead of the I specs.  Thanks a bunch

Mark replied, and Bob clarified:
>The example that Mark sent is close to correct, he omitted the "E" in
>column 22 (I think?) so the example should be like this:
>
>> D xternalDS  E DS                           extName(FileName)
>> D  field1    E                              extFLD(newField1)
>> D   field2   E                              extFLD(newField2)

Actually, the new field names should be coded in positions 7-21.  The
parameter for keyword EXTFLD is the external field name.

Troy:  Exactly what are you trying to accomplish?  Renaming fields on
the D-Spec as shown does not have the same effect as renaming fields on
I-Specs.  If you code the ext-desc data structure, your I/O operations
will still use the fields named in the DDS, and not these renamed
fields in an EDS.

If you want to read from an ext-desc file and have the data moved into
variables with different names than defined in the DDS, I believe the
only way is by coding the renames on I-Specs.


Hans Boldt, ILE RPG Development, IBM Toronto Lab, boldt@ca.ibm.com