one-to-many

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Avoiding duplicates in designing One to Many relationship

I went through m开发者_如何学编程any threads and couldn\'t figure it out. Sorry if this is a duplicate question. Consider the following setup.[详细]

2023-03-02 20:59 分类：问答
How to Insert Core Data Record Related to Another Without Duplication

I have two core data entities, Articles and Favorite. Articles has To-Many relationship to Favorite. First, I inserted all Articles object successfully.[详细]

2023-03-02 12:18 分类：问答
how to reference multiple columns in a 1:N relationship chain

I\'m still in my learning curve with grails and I\'ve bumped into the following problem: class Departement {[详细]

2023-02-27 05:20 分类：问答
NHibernate HasMany relation. Collection is null until session reopen

I\'ve got a problem with NHibernate and, as I suppose, with lazy load. I\'ve got two entity classes, that are related to each other:[详细]

2023-02-26 18:44 分类：问答
Redirect with an HTTP Post instead of a simple link, using PHP

I have one website, of a magazine publisher, and this site has a standard hyperlink to another site that hosts the elec开发者_开发问答tronic version of the magazine.The emagazine hosting site has it\'[详细]

2023-02-25 09:35 分类：问答
EF 4.1 code first: one-to-many mapping problem

In my domain I have these classes (in simplified form) public class Document { public string Id { get; set; }[详细]

2023-02-24 18:20 分类：问答
@OnetoMany class call

i need some help for my开发者_JAVA技巧 class... package com.it.ese.orbit.entity; import javax.persistence.*;[详细]

2023-02-24 10:45 分类：问答
Joining one table to the latest row in another table using MySQL

I want to join two tables in a special way, first table is devices which has a list of devices. The second table is datalog which is where abit of data is stored for everytime a device in devices get[详细]

2023-02-24 05:59 分类：问答
Hibernate Query Not Projecting Correctly in One To Many

I am doing a query where I need to get a user back, that also has UserConnectors populated with it.My Query keeps bringing back two results instead of one for a single ID.It should be one result, but[详细]

2023-02-23 03:12 分类：问答
Core Data: odd crash when getting data from store

Hia, got a one to many relation for chars and items. one char can hold a specific item, same item can be used by others.[详细]

2023-02-22 05:44 分类：问答