cascading-deletes

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How do I delete a child entity from a parent collection with Entity Framework 4?

I\'m using Entity Framework 4 and have a one-to-many relationship between a parent and child entity. I\'m trying to delete a child using the parent repository by removing it from the parent\'s childre[详细]

2022-12-31 19:51 分类：问答
SQL Server Delete - Foreign Key

I have got two tables in SQL Server 2005: USER Table: information about user and so on. COUNTRY Table : Holds list of whole countries on the world.[详细]

2022-12-30 10:53 分类：问答
why when I delete a parent on a one to many relationship on grails the beforeInsert event is called on the child?

I have a one to many relationship and when I try to delete a parent that haves more than one child the berforeInsert event gets called on the frst child. I have some code in this event that I mean to[详细]

2022-12-30 01:40 分类：问答
nhibernate many to many deletes

I have 2 classes that have a many to many relationship. What i\'d like to happen is that whenever i delete one side ONLY the association records will be deleted with no concern which side i delete.[详细]

2022-12-28 09:32 分类：问答
Nature of Lock is child table while deletion(sql server)

From couple of days i am thinking of a following scenario Consider I have 2 tables with parent child relationship of kind one-to-many. On removal of parent row i have to delete the rows in child thos[详细]

2022-12-25 08:18 分类：问答
Cascading Deletes in SQL Sever 2008 not working

I have the following table setup. Bag +-> BagID (Guid) +-> BagNumber (Int) BagCommentRelation +-> BagID (Int)[详细]

2022-12-24 10:40 分类：问答
What are the options for overriding Django's cascading delete behaviour?

Django models generally handle the ON DELETE CASCADE behaviour quite adequately (in a way that works on databases that don\'t support it natively.)[详细]

2022-12-23 04:51 分类：问答
nhibernate does not cascade delete children

The scenario is as follows, I have 3 objects (i simplified the names) named Parent, parent\'s child & child\'s child[详细]

2022-12-21 21:24 分类：问答
iPhone Core Data: Cascading delete across a many-to-one relationship

I have two classes A an开发者_开发问答d B with a many-to-one relationship from A to B (multiple A objects may reference the same B).The question is, if the delete rule on the A side is Cascade, will B[详细]

2022-12-19 00:02 分类：问答
cascade delete multiple levels with nhibernate?

I have a hierarchy of tables 3 levels deep (QualificaionType has many QualificationGroups, which have many Qualifications) mapped like this:[详细]

2022-12-10 05:36 分类：问答