deleting and many to many
deleting and many to many
- Subject: deleting and many to many
- From: Frank Stock <email@hidden>
- Date: Thu, 9 Aug 2007 13:52:47 +0200
Hello,
I have a table A and B and a many to many relation R between A en B.
The relation-table R has a primairy key and the relation RA to A and
RB to B. (RA and RB can't be null)
I see that there are a few rows in R where RB is 0 or RA is 0 or (RA
and RB are 0), a few have a RB with no link to B, so if we delete A,
we get an error.
The EOmodel is OK so, if we delete B, the cascade is working to
delete related R's.
How can RA or RB get 0? Where do I have to look??
We have about 1% errors.
Thanks for advice.
Frank Stock
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