The FK (Foreign Key) in the Parent Table IS the PK (Primary Key) in the Child Table, which is created at the Database Design Phase. If this is not done, then you MUST create the RELATIONSHIP between the Parent Table and the Child Table first.
More detail information can be found in Wrox's Beginning ASP.NET Databases Using VB
.NET, Defining Relationships between DataTable Objects, p 155.
Hope this helps.
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