many-to-many
Unable to create a constant value of type (type) Only primitive types ('such as Int32, String, and Guid') are supported in this context
I\'ve read ALL of: Unable to create a constant value of type 'System.Object' in Entity Framework[详细]
2023-03-31 02:13 分类:问答Persist PK Object with JPA (ManyToMany)
Please change title if you know a better one, because I really don\'t know how to express the problem.[详细]
2023-03-30 16:17 分类:问答Postgres: n:m intermediate table with type
I have a table called \"Tag\" which consists of an Id, Name and Description column. Now lets say I have the tables Character (C), Movie (M), Series (S) etc..[详细]
2023-03-30 12:47 分类:问答Database Design for many-to-many revisions?
My question is related to Database Design for Revisions? but more complicated. I have two tables with many-to-many relations between them. Let\'s call them A and B.[详细]
2023-03-30 09:41 分类:问答NHibernate + Many-to-Many + bag + mapping table
I have following 3 classes. BusinessStream Scheme Bus_Stream_Scheme_Map When I try to execute transaction.Commit() method, after session.SaveOrUpdate() for BusinessStream, I get following error,[详细]
2023-03-30 02:27 分类:问答Joins on MySQL many-to-many tables
This has been driving me mad. I have three tables: items ID name type cats ID name items_to_cats FK_ITEM_ID FK_CAT_ID[详细]
2023-03-29 22:21 分类:问答What's the best way of clearing a list so I can re-add the elements for ColdFusion 9 ORM?
Let\'s say I have a Store and a Product entity, with a many-to-many relationship between them, and both are persistent CFC\'s.[详细]
2023-03-29 18:26 分类:问答django: is there a black magic on extra fields on many-to-many relationships?
It\'s from Django\'s official doc: https://docs.djangoproject.com/en/dev/topics/db/models/#extra-fields-on-many-to-many-relationships[详细]
2023-03-29 13:58 分类:问答NHibernate many to many mapping
So I have a situation I\'m trying to map with NHibernate. Say we have the following schema: Question - QuestionID[详细]
2023-03-29 06:51 分类:问答Doctrine 1.2, running query over a Many to Many table
I want to make a query on an automatic generated table under Doctrine 1.2. In this particular case I have the following query:[详细]
2023-03-29 05:57 分类:问答