foreign-key-relationship

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Relationship between database tables

I\'ve got a question relating databases which i can\'t find the anwser for myself. Currently i got a situation where i have a database with two tables. The two tables are named items and items_sequenc[详细]

2023-03-09 13:37 分类：问答
linq to sql Association problem with foreign keys

I have two simple tables and a big problem with foreign keys: Sale (SaleID int PK identity) SaleDetail (SaleDetailId int PK[详细]

2023-03-08 22:31 分类：问答
Three-way Referential Integrity - SQL Server 2008

I am building a database using SQL Server 2008 to store prices of securities that are traded on multiple markets.[详细]

2023-03-06 22:04 分类：问答
Rename a foreign row in a Strong Typed DataSet

Let\'s say I have the following DataBase/DataSet Schema structure : Table Employee EmployeeID PK Name Table Desk[详细]

2023-03-06 10:47 分类：问答
MySQL Foreign Key Referencing

I m a new bee i have used sql server 2000 before my question is when creating two tables in sql server 2000 say location and projects table projects having a foreign key referencing the location table[详细]

2023-03-06 08:19 分类：问答
rails foreign key problem

I am a newbie in the Rails framework. I\'ve created tables: DealerGroups开发者_JS百科Dealer ------------------------[详细]

2023-03-06 05:09 分类：问答
foreign-key relationship with Doctrine concrete inheritance

In my schema, I have a generic table Animal and an inherited table Dog. Before using doctrine, I used to implement this pattern with an inherited id referencing the generic id as foreign key.[详细]

2023-03-05 23:12 分类：问答
How to prevent a loop in a bi-directional relationship

Say we have the following two entities. Library public class Library { private Collection<Book> books = new ArrayList<Book>();[详细]

2023-03-05 06:30 分类：问答
Entity Framework - Reverse Foreign Key Check

We have a system that allows Administrators to build out new content types within the system, including foreign key linkages to other tables. The Admin can then rebuild the database, at which point it[详细]

2023-03-05 02:31 分类：问答
displaylist of children in parent model one-to-many

I am learning django admin, i have to models with a one-to-many relation between them. I got something like Manufacturer model where i can add different car manufacturers, and Car model for adding car[详细]

2023-03-04 22:29 分类：问答