I have an object model like that: Folder - simple structure with name etc. File - complex object containing reference to Folder in which it is contained.
Why isn\'t my CascadeType.REFRESH actually refreshing my entities? When adding an object it doesn\'t update the collection (still empty).
I have a many-to-on开发者_如何学Goe mapping on bookings. A booking must belong to a room. And a room can have several bookings.
I have this DB design: contracts id name allotment id name contract_id allotments开发者_运维技巧_rooms
While developing an Eclipse GEF application using an eclipselink implementation of JPA i have found an error that has been annoying me for a while:
This is ms create table script: It is a N:M relation between the SchoolclassCode and the Pupil table CREATE TABLE Schoolclasscode (
I have the following rows: ID|Customer | Part Number | Part Number Price | Hardware ID | Hardware Value
I have been struggling with defining cascade behavior in Doctrine ORM. According to the documentation, one is supposed to use onDelete: CASCADE for database-level cascade (which is what I am trying t
I know that destroy cascade will work if prop开发者_如何学Pythoner relationships are setup in the models, but I want to know whether there is a way to destroy cascade on-the-fly, without needing to ha
I\'m new to EF code first principal and currently with no clue what to do.. I have 2 POCO classes.. public class Problem
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