one-to-one

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One to One error in Entity Framework 4

I have already read Entity Framework One-To-One Mapping Issues and this is not duplicate as the business rule specs are different here.[详细]

2023-01-24 14:40 分类：问答
How to cascade save a simple shared primary key one-to-one mapping in hibernate 3.6

I need a simple hibernate example of an entity with a one-to-one relationship with another entity where they both share the primary key.I need to only have to save the main entity that is auto-generat[详细]

2023-01-24 06:23 分类：问答
NHibernate: Composite key many-to-one mapping: Can't resolve property (foreign key component)

I hope anyone can help. I have to develop up against this third party database and I am kind of stuck with their crappy design. Still, I want to use NHibernate so I will have to jump through hoops.[详细]

2023-01-19 21:30 分类：问答
How does django one-to-one relationships map the name to the child object?

Apart from one example in the docs, I can\'t find any documentation on how exactly django chooses the name with which one can access the child object from the parent object. In their example, they do[详细]

2023-01-16 13:39 分类：问答
How to declare one to one relationship using Entity Framework 4 Code First (POCO)

How to declare a one to one relationship using Entity Framework 4 Code First (POCO)? I found this questio开发者_C百科n (one-to-one relationships in Entity Framework 4) , but the article that the answ[详细]

2023-01-13 21:50 分类：问答
(1+N) selects with OnetoOne associations

Considering the following model: @Entity public class User { @Id @Column(name = \"USER_ID\") private Long userId;[详细]

2023-01-12 07:33 分类：问答
Hibernate+JPA One To One relationship

I have a OneToOne relationship like this :- PersonOthers ------------------------ id(PK) |<----------------->| id(PK)(FK) |[详细]

2023-01-12 04:43 分类：问答
Convert many to many to one to one (mysql)

We changed database schema and moved a relationship between users/accounts from a 1-1 to a many to many using a join table accounts_users.[详细]

2023-01-11 22:51 分类：问答
Secondarytables or OnetoOne associations?

Considering the following \"model\": USER Long: PK String: firstName String: lastName USER_EXT Long: PK String: moreInfo[详细]

2023-01-11 21:49 分类：问答
modeling a "one-to-one" relation in a database is the same than modeling "inheritance"?

i was wondering if there\'s a difference between modeling a one-to-one relation and a inheritance relation (Table-Per-Type) In both cases we add a foreing key with a UNIQUE constraint, or somethimes t[详细]

2023-01-11 11:34 分类：问答