I am trying to import data from a database that uses primary key / foreign key relations to a core data database in Xcode.
I\'m loading 3 different tables using a cross-join in Doctrine_RawSql. This brings me back the following object:
Can anyone tell me whether Hibernate supports associations as the pkey of an entity? I thought that this would be supported but I am having a lot of trouble getting any kind of mapping that represents
I have several entities which respresent different types of users who need to be able to log in to a particular system. Additionally, they have different types of information associated with them.
I have no problem with converting ER to SQL tables, but I don\'t know how can I convert EER to SQL tables?
I am trying to understand why this statement in the book is wrong: \"given a C entity, there is at most one related A entity and at most one related B entity\".
What does one loose by creating POCO us开发者_Python百科ing T4 templates in entity framework 4.0? Why is the default behavior when using entity framework 4.0 not to create POCO?You lose a number of th
I\'m using Hibernate in a Java application, and i feel that something could be done better for the management of parent/child relationships.
I am developing a Java Desktop Appli开发者_JAVA百科cation and using JPA for persistence. I have a problem mentioned below:
We are designing a SQL Server database with link tables for many-to-many开发者_如何学编程 relations.
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