Example: Table \"persons\", Column \"surname\" may only contain values predefined in Table \"names\", Column \"surnames\", which would contain a col开发者_C百科lection of surnames acceptable for the
Tools: SQL2000/5/8, .NET 3.5, C# I have come across an application that has two tables. In “code” the tables look like this:
I\'m trying to figure out the best way to move/merge a couple tables of worth of data from multiple databases into one.
I\'m writing a database test against a repository that uses L2S.In my database I have a Manifest entity and an AllocatedTransaction entity.The AllocatedTransaction entity has a foreign key to the Mani
and thanks for reading. I\'m making a DB for a puppy shop. I have a table for puppies and a table for owners.A puppy can have one owner, owners can own more than one puppy, but not all puppies are ow
I use VS 2008 (C#) and SQLite via ADO.NET 2.0 Provider (SourceForce project). The database used by application contains an \"employees\" (parent) and \"employmentHistory\" (children) datatables. \"ep
I\'m having to downgrade a site from .NET 4 beta 2 to .NET 3.5. The biggest hurdle is all the foreign key identity values I reference/lookup, as this isn\'t supported natively in EF 3.5.
Given a Postgresql table schema: create table thing ( id serial primary key, key text, type int references thing,
The g开发者_如何学运维eonames database has two models that refer to each other.In a postgres database, reference is provided by foreign key relationships.The problem is writing data to the database -
I\'ve just come across a table in production whic开发者_运维知识库h has 4 foreign key constraints.Two of the constraints are exact duplicates of the other two.
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