many-to-one

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JPA, Spring and ObjectDB not updating

I am quite a newbie to Spring JPA in cooperation with ObjectDB database, but I have encountered a problem that I cannot work out.[详细]

2023-04-12 12:49 分类：问答
A lookup table for one-to-many relationship?

I understand that a lookup table is necessary when we are dealing with many-to-many relationship. But what about one-to-many relationship - do we need a lookup table or a foreign key in one of the ta[详细]

2023-04-12 06:30 分类：问答
Zend Framework, Doctrine 2 @ManyToOne

I basicky followed this http://www.zendcasts.com/one-to-many-with-doctrine-2/2011/03/ tutorial to the step (source codes can be downloaded from there). And everything works just fi开发者_运维问答ne, s[详细]

2023-04-12 02:12 分类：问答
Django count specific items of a many-to-one relationship

I have a Django app where users post messages and other users can vote the answers up or down, very similar to SO. I\'m having an issue trying to get the \"thumbs up\" and \"thumbs down\" counts from[详细]

2023-04-11 19:29 分类：问答
Fluent NHibernate one-to-many with intervening join table?

I\'m having trouble getting the Fluent Nhibernate Automapper to create what I want.I have two entities, with a one-to-many relationship between them.[详细]

2023-04-07 12:52 分类：问答
Help managing many-to-one results for lookup

I didn\'t see this exactly asked, so I\'m hoping it wasn\'t. I have a table that has multiple columns with code variables and a table that has all lookup codes and de开发者_StackOverflow中文版script[详细]

2023-04-06 22:15 分类：问答
org.hibernate.AnnotationException: @OneToOne or @ManyToOne on <entity> references an unknown entity

I am receiving the following Hibernate Exception: org.hibernate.AnnotationException: @OneToOne or @ManyToOne on cz.rohan.dusps.model.Switchport.konfiguracniTemplateAccess references an unknown entity[详细]

2023-04-03 08:27 分类：问答
ORMLite ManyToOne's friend JoinColumn annotation not handled

I have been fiddling with ormlite on android. It\'s early days a开发者_如何学Gond so far I really like what I have seen.[详细]

2023-04-03 05:10 分类：问答
Multiple relationships with single mapping table without generating foreign keys by Hibernate

I have two base abstract classes and there are multiple additional classes derived from these two, adding additional attributes etc.[详细]

2023-04-02 09:07 分类：问答
NHibernate: Many-to-one IUserType

Following on from this question: NHibernate: Lazy loading of IUserType Seeing as I can\'t lazy load a property or a one-to-one relationship, is there a way I can use an IUserType with a many-to-one?[详细]

2023-04-02 04:04 分类：问答