I have a 2 enum values representing a mapping to object which I\'m (currently) modeling with a HashMap with the 2 enums values are used as key and the object is the value.
In my database application, when I try t开发者_如何学Co attach a page to a site, I get the following error:
I\'m encountering somewhat of an, uh, unorthodox design and I\'m not quite sure how to handle it. The table I\'m trying to map looks like:
In this code, how to generate a Java class for the composite key (how to composite key in hibernate):
I have two table Part and SubPart. Part table has general fields like id, name, desc etc. The SubPart table has part_id, sub_part_id as composite key. Both of these columns are referring to Part table
How does Sql Server 开发者_JAVA百科handle fill factor on tables with clustered indexes on composite primary keys?
I am sure I am not the first who has composite unique keys in tables and who wants to validate them. I do not want to invent the bicycle so I ask here first. I have several table开发者_C百科s that hav
I want to make a composite key (well that\'s the idea but I\'m open to other suggestions) on a Documents table. It would consist of two columns, year (2010,...) and an ID, which would be autoincrement
How can I create a composite key on multiple columns, one of which can have some value but not null (or some constant value)?
I was playing with EntityFramework CTP4 and decided to apply it to one of my current projects. The application uses a SQLServer database and there is one table with a composite key. Say, table \"MyEnt
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