I have data coming into the database from various sources. Some of these data may be duplicated, except that there is a field noting the data source they are coming from. I do not wish them to appear twice, but I do wish to make a note that these records were seen in two or more sources. As I understand a UNIQUE INDEX will just filter out the double entries. What I really want to say is:
IF INDEX(field1,field2,field3,...,fieldN) is seen, then do not insert this record, but in the existing record, UPDATe field N+1 to whatever it is plus the string ",field0" Example: field0 filed1 field2 field3 field4 172.16.166.1 10 trans1 already exists and we see a record 172.16.166.2 10 trans1 then UPDATE the excisting record to 172.16.166.1 10 trans ,172.16.166.2 I suspect this cannot be done in SQL, so maybe I need to try via say DBI do an INSERT and if it fails then do the update. But I guess I need to look at failure codes then to make sure this is tthe problem indeed. Is there maybe a cleaner way?? Thanks, S.Alexiou --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
