I have a Microsoft SQL Database with 2 tables: dog and cat. \"dog\" table has a primary key column called \"food\", which is related to a column called \"food\" as well in the \"cat\" table, which ac
I have a table of users (User), and need to create a new table to track which users have referred other users. So, basically, I\'m creating a many-to-many relation between rows in the same table.
I have two tables: Challenge: challengeID INTEGER PRIMARY KEY ... And UserChallenge: ID INTEGERPRIMARY KEY challengeID INTEGER NOT NULL
From the Grails site: http://www.grails.org/doc/1.0.x/guide/5.%20Object%20Relational%20Mapping%20(GORM).html
I have the following two entities, with their mappings: public class VideoCategory : BaseEntity<VideoCategory>
I recently updated a number of tables in the database to use OnDelete=Cascade, however, when I went to update my edmx file via Update model from database I noticed that the OnDelete was not properly u
I am using H开发者_开发知识库ibernate and a few times had to implement cascading DELETE operation from parent object to its children. I used the following two options.
I would like to know when to actually use delete cascade or delete restrict AND update cascade or update restrict. I\'m pretty confused using them or applying in my da开发者_Go百科tabase.Using the cas
Vendor (PK) - Id Name Stand (PK) - Id VendorId - fk - cascaded delete if Vendor is deleted) Name Item (PK) - Id
I recently began using Fluent Nhibernate for my data layer and have come across an issue.Whenever i want to delete a record that has multiple foreign key constraints,开发者_JAVA技巧 i have to create a
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