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emperon
 Post subject: IDBAG with two relations
PostPosted: Thu Aug 16, 2007 3:09 am 
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Beginner

Joined: Mon Jul 30, 2007 4:58 pm
Posts: 21
Here's my domain model:
A User has many Transactions. A Portfoilo also has many Transactions. The relations are one to many and unidirectional. Traversing from Transaction to a User or Portfoilo is unnecessary. Transaction table has two foreign keys to each of the User and Porfoilo Table.

The problem is I am trying to make the mapping as IDBAG. (Since BAGs are not nice when inverse = false). My question is :

Is it safe to use the PK of Transaction table to use as a surrogate key for both of the User and Portfoilo IDBAG mappings ?
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