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You can chain to an update file without performing an actual update yes. Just don't update the record. One thing I would watch for is to make sure that you chain to the correct record you wish to update just in case you may still be pointing to the record you don't want to update. HTH, Ron Power Programmer Information Services City Of St. John's, NL P.O. Box 908 St. John's, NL A1C 5M2 Tel: 709-576-8132 Email: rpower@xxxxxxxxxx Website: http://www.stjohns.ca/ ___________________________________________________________________________ Success is going from failure to failure without a loss of enthusiasm. - Sir Winston Churchill CarollaT@xxxxxxxxxxxxxx Sent by: rpg400-l-bounces@xxxxxxxxxxxx 03/09/2004 12:45 PM Please respond to RPG programming on the AS400 / iSeries <rpg400-l@xxxxxxxxxxxx> To rpg400-l@xxxxxxxxxxxx cc Subject CHAIN to a DS I have written some code that takes records in a temp file, and either updates or adds them to another file. It's the same old, "If the record exists, update, else write" scenario. The top factor for this little module is speed - We want this thing to scream, so I am trying to cut every corner I can, then I will document the you-know-what out of it later. Basically, I have the output/update file prefixed with a 'D', and I read the input record, attempt a chain to the output/update file, and move the fields (450+) from the input file to the output file (in case the chain found a record), and conditionally write or updated, based on %FOUND. So I am thinking about this, and I know that you can CHAIN, and read the resulting record into a data structure. What I am wondering is, since both files have the same format, and field names, can I CHAIN to the output/update file, but read the record in to a DS, and _not_ udpate the fields in the record format. Does every successful chain have to send the fields to the input record fields? If not, then I would attempt the chain, and skip moving the 450+ fields to the output buffer, with the prefix. Thanks in advance for your help. Tony Carolla MedAmerica Billing Services, Inc. -- This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list To post a message email: RPG400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/rpg400-l or email: RPG400-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/rpg400-l. This e-mail communication and accompanying documents is intended only for the individual or entity to which it is addressed and may contain information that is confidential, privileged or exempt from disclosure under applicable law. Any use of this information by individuals or entities other than the intended recipient is strictly prohibited. If you have received this in error, please notify the sender and delete all the copies (electronic or otherwise) immediately.
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