Le 28/07/12 14:17, Lynne Stevens a écrit : Hi Lynne,
> *How do I check for duplicates in a data base using another data base ? > By "another data base", do you mean : (a) another ODB file ? (b) another type of database manager, e.g. Access vs Calc, or MySQL vs Access, or even Access vs Access ? (c) another table in the same ODB file or in the same database schema managed by a unique database manager ? (d) any or all of the above combined ? As you can see, the possibilities belie what would appear to be a seemingly simple question. Andreas has answered (c) for you, i.e. where both tables are in the same database schema. There is no simple way to compare the contents of 2 HSQLDB/ODB files, other than extracting the contents from one and importing it into the other as a temporary or new table and then comparing the table results from within the single ODB file using a JOIN query. As for (b) LO Base does not allow you to adress two separate database schema as far as I know from within a single query. I heard tell once that it might be possible with Access tables being read by LO if an ODBC connection was being used, and this only would work on Windows. Not having tried it, I can't say whether it is true or not. If what you are aiming for is indeed cross-schema queries in order to be able to compare, this has been a requested (and never implemented) feature in OpenOffice.org for many years. Alex -- For unsubscribe instructions e-mail to: [email protected] Problems? http://www.libreoffice.org/get-help/mailing-lists/how-to-unsubscribe/ Posting guidelines + more: http://wiki.documentfoundation.org/Netiquette List archive: http://listarchives.libreoffice.org/global/users/ All messages sent to this list will be publicly archived and cannot be deleted
