Here's an approach I saw at a customer recently... Journal the database files, before and after images. Then create a exit program for RCVJRNE that generates the INSERT, UPDATE and DELETE statements. This particular customer logged the SQL statements with date/time stamps into a physical file. Then another ODBC or JDBC retrieval was used to execute the statements on the external database. Hth, Ken Slaugh (707) 795-1512 x118 Chouinard & Myhre, Inc. http://www.cm-inc.com/ -----Original Message----- From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Glenn Holmer Sent: Wednesday, October 05, 2005 9:31 AM To: java400-l@xxxxxxxxxxxx Subject: trigger or listener? We want to have a Postgres database on a Linux web server updated when the corresponding record on the AS/400 changes. We are thinking: a) DB trigger on the '400 that wakes up when the record is changed and calls a Java program (also on the '400), passing the needed parameters as arguments to main(); the Java program uses JDBC to update the Postgres database on the Linux server. Pro: probably easy to set up, Con: new process spawned for each write. b) A Java program that runs all the time and listens for changes on the AS/400 database using something like FileListener from the JT400 toolbox (haven't researched this yet); he would do the same as a). Pro: single program, Con: don't know if it's possible. What recommendations would you guys make? We are hoping to get away without modifying the program that is actually making the changes on the '400. We are not talking about a huge number of records here; probably a couple hundred every few hours. -- ____________________________________________________________ Glenn Holmer gholmer@xxxxxxxxxxxxxx Software Engineer phone: 414-908-1809 Weyco Group, Inc. fax: 414-908-1601 -- This is the Java Programming on and around the iSeries / AS400 (JAVA400-L) mailing list To post a message email: JAVA400-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/java400-l or email: JAVA400-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/java400-l.
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