many-to-many

相关标签：javascript jquery android 多少钱 iPhone

Create code first, many to many, with additional fields in association table

I have this scenario: public class Member { public int MemberID { get; set; } public string FirstName { get; set; }[详细]

2023-03-27 17:04 分类：问答
Need some advice to maintain a certain order within datasets within MySQL

Assume a list of names in a table called authors. Each author has written some books during his lifetime. Important: You don\'t know the explicit dates when the books were published. (If I would now t[详细]

2023-03-27 15:12 分类：问答
Django Querying Self-referential Many-To-Many relations

I am trying to get a list of all manuscripts in my db, print out the shelfmarks for each of them and in case that they are linked to other manuscripts also print out the shelfmarks of those manuscript[详细]

2023-03-27 03:20 分类：问答
Efficiently selecting from many-to-many relation in H2

I\'m using H2, and I have a database of books (table Entries) and authors (table Persons), connected through a many-to-many relationship, itself stored in a table Authorship.[详细]

2023-03-27 02:12 分类：问答
Yii find models through many_many relationship

I\'m using Yii and have 3 tables: users, devices with a users_devices table (user_id, device_id) to define the MANY_MANY relationship between them.[详细]

2023-03-26 12:05 分类：问答
Hibernate: delete orphan from Join Table

I have two persistent classes. 开发者_运维技巧They are are in many-to-many relationship. One class have a set of objects of another class.[详细]

2023-03-26 08:39 分类：问答
Save a many to many relationship

I have i little problem with save Tags of an Portfolio with Doctrine. I have Portfolio Model: abstract class BasePortfolio extends Doctrine_Record[详细]

2023-03-26 06:26 分类：问答
codeigniter doctrine many to many relationships

I have three tables. User id Group id UserGroup user_id article_id date_joined Now I have three separate models to set up the relationship.[详细]

2023-03-25 15:55 分类：问答
linq to sql, insert many to many relationship

I have 3 tables. Post: PostID, PostName Tag: TagID, TagName PostTag: PostTagID, PostID, TagID Following codes are how I insert many to many. but I use SubmitChanges() three times,I dont think that[详细]

2023-03-25 15:35 分类：问答
Why doesn't this SELECT query return the results I expect?

I need help with a select query, but before asking the question, I will give a short description of how my system works:[详细]

2023-03-25 09:54 分类：问答