RE: Dual Format

[Buck Calabro <michael.calabro@xxxxxxxxxxxxxxxxx>]

> In a message dated 00-01-05 18:24:06 EST, you write:
> 
>> I think I am going to have to open up the 2 files I created with DDS
>>  just for the record layouts, then do some type of overlay to get the
>>  record layout into the fixed length field of the un-DDSed file (the one
>>  I will be writing too).
>>  
>>  Can anyone think of a better way?  If not, could someone give me
>>  an example of how to do what I am trying to do?  That is, over lay the
>>  40 bytes of my DDS to another field.  The DDS is externally described,
> >>  so is not in my program itself.  I am dealing with a small number of
>>  fields,
>>  7 in each of the header and details.
>
>If this is rpg4, you can define data structures using the external file 
>descriptions, populate the data structure subfields in the program, move
the 
>whole structure to a long enough character field and write that out to the 
>banks file.  For our ACH files, I create a file with a single 90 char field

>and contcatinate the data into it.  HTH, Lance

You can do the same thing in RPG/400.  Here's an antique sample of S/38
code:

     FCADTELF O   F     900            DISK
      *                                                            
      * Connect customer record                                    
      * Force length to match file recl to avoid compile time error
      *                                                            
     ICONCC     EIDSCADTCCFDS                   900                
      *                                                            
      * Transaction header record                                  
      * Force length to match file recl to avoid compile time error
      *                                                            
     IHDR       EIDSCADHD#FDS                   900                
      *                                                            
      * Load output DB fields from input and write out DS
      * This emulates DDS for a flat file
      * Header                                  
     C                     MOVEL'HEADER'  CHTYPE
     C                     Z-ADDCYMD      CHCYMD
     C                     Z-ADD1         CHCNT 
     C                     MOVELM,1       CHDESC
     C                     WRITECADTELF   HDR   
      * Detail                                  
     C                     MOVELM,1       CDESC 
     C                     WRITECADTELF   CONCC 

Buck Calabro
Aptis; Albany, NY
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