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  2. RPG400-L
  3. September 2004

Re: Reading/Chaining into a DS, and RNF0202

Well, it looks like I can read, chain, and update an externally
described file from a LIKEREC DS just fine.  But apparently WRITEing
from a DS isn't allowed?

I get RNF7701 - The data structure is not allowed for the operation,
during the compile.  I tried by declaring the file for update mode,
with addtions allowed:

     FDFamly    UF A E           K Disk    ExtFile('DMART/DFAMLY') 

And also tried by declaring it for output:

    FDFamlyWrt O    E             Disk    ExtFile('DMART/DFAMLY')
     F                                     Rename(RFAMLY:RFAMLYW)

Why would the compiler let you read, chain and update, but not write
from a DS?  Is this a known, undocumented limitation?

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