For the sake of the example, let\'s say that I have to model the \"person\" entity of the database of my country\'s revenue service, and that in my very small country the first name and the last name
I have a composite primary key in 1 table in oracle.I want to create a foreign key for one table entry in my second table that references the composite primary key in the first table.I am getting the
In my database, I have two tables, one logically referencing other, but with no foreign key defined (I cannot control the database, so have to live with that). E.g.:
im using an intermediate entity-class to map additional columns to a jointable. SQL: CREATE TABLE backlogaufgabe
im using an intermediate entity-class to map additional columns to a jointable and it works fine as long as the Id will be generated from the both fkeys from the involved tables.
I us开发者_运维知识库e NHibernate with mapping in the HBMs I have Table1 like this ID int(PK) Category int(PK)
I have the following domain model Currency ----< Price >---- Product Or in English A Product has one or more Prices. Each Price is denominated in a particular Currency.
Is there a syntax for passing composite keys, i.e. lists and objects, like the below example开发者_Python百科, or is that by-design?
I\'ve got an entity which is identified by no own id but an unique combination of properties, each of which is a foreign key.
Is there a way to add a composite (multi-column) foreign key to an InnoDB table via the PhpMyAdmin interface?I already have the appropriate composite primary key in the target table, and I can single
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