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  1.  Home
  2. RPG400-L
  3. April 2003

Adding another subfield to an externally defined data

 >> If so, then what is
 >> the purpose of chaining/reading into a data structure using the LIKEREC?

 >And that's my question, too! :-)

And the answer is ... efficiency among others.  Normally RPG moves each
field out of the buffer individually to it's "home" in the program.  When
you do it directly into a DS, the whole record can be moved as a character
block.  Much faster.  This also gives you the opportunity to trap (say)
decimal data errors as and when you use the fields by using MONITOR blocks.
When the compiler generates the moves for you you can't do that.

Jon Paris
Partner400
www.Partner400.com

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