For Higher Computing Science, revise the use of primary and foreign keys and the difference between flat file and relational databases.

When multiple variables are included in the specification for a primary key, foreign key, or unique integrity constraint, a composite index is created and the integrity constraint will enforce the ...

Cascading referential integrity constraints are foreign key constraints that tell SQL Server to perform certain actions when a primary key field in a primary key-foreign key relationship is ...

When working on a multidimensional design, every fact table within scope should be handled with care. In an ideal world, each low-level fact table represents the metrics related to a business event.

For everyone normalizing their designs, just remember: There ain't no such thing as a partial foreign key. When a project pretends that partial foreign keys are a valid concept, the end result is a ...