RPG Trigger Pgm

     I'm trying to work up a sample DB trigger pgm (RPG) to validate 
     records at *insert and *update.  Documentation (DB2 for OS/400 
     Database Programming V3R7) indicates that I can modify the new record 
     image in the trigger buffer, but I can't see any way to apply changes 
     to the trigger buffer at offset value. For example, I want to update a 
     field RCDSTS to "SC04" to indicate the record contains errors before 
     writing a record to a Status History file. I can't see how to move 
     SC04 into the trigger buffer @ offset value corresponding to this 
     field. (<-- Huh? I think I just confused myself....)
     
     I guess I'm looking for the opposite of SUBST.. something that will 
     let me move a value into a field at location X. 
     
     Am I going to have to learn basing pointers or what?  Any hints, 
     suggestions, or samples would be appreciated.  Thanks.
     
     Eric A DeLong
     ericadelong@pmsc.com  
      


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