In relational databases, it is a field in one table that is indexed in another. Foreign keys provide the building blocks for relating tables. For example, in a customer order table, the salesperson ...

This month I'm writing about an issue I've found myself helping people with frequently of late: problems with related classes defined in Code First and then, in most cases, used in the ...

Occasionally one sees an entity-relationship diagram (ERD) having an unusual characteristic. The unusual element is an entity (or more than one) that seems to have a relationship with every other ...