Re: Bug in Migration Wizard 2.4.12 with 1-1 relationships
От | Erwin Brandstetter |
---|---|
Тема | Re: Bug in Migration Wizard 2.4.12 with 1-1 relationships |
Дата | |
Msg-id | 3E59A235.70009@unet.univie.ac.at обсуждение исходный текст |
Ответ на | Bug in Migration Wizard 2.4.12 with 1-1 relationships ("Rohan Carly" <rohan@ccu.org.au>) |
Список | pgadmin-support |
> * From: "Dave Page" <dpage@vale-housing.co.uk> > It's rumoured that Rohan Carly once said: >> I am trying to use the the Migration Wizard (version 2.4.12) to export >> a simple Access database to Pgsql. I notice that the migration wizard >> fails, if I have defined 1-1 relationships inside MS Access. > > Please try the latest snapshot from the binaries folders at > http://cvs.pgadmin.org/. Instructions are in the readme - you will need to > upgrade all files, not just the migration wizard. > PostgreSQL (and most DBMS') do not refer to foreign keys as relationship > types quite as Access does, so there is no real concept of a 1:1 key as > such. To enforce that, you will need to manually add a unique index on the > fkey column. > Please let me know if you have any trouble. Hi Dave! Hi Group! I used to experience the same troubles with 1:1 relationships, and I am very happy to say that your fix did it. I was able to export a complex data structure with 36 tables including several 1:1 relationships from Access 97 without a problem. Previously the migration used to stop and roll back when hitting the first foreign key from a 1:1 relationship. BTW, I agree with the other guy that pleaded for a "per table commit". Did I see a new option in the migration wizard doing exactly that allready? Thanx a lot for the tool and especially for the latest fixes. I appreciate it. Good job! Regards Erwin Brandstetter
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