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Where did U.S.eighth grade students rank internationally in terms of average math scores in 2007?
Foreign Key
A column or set of columns in a database table that provides a link between data in two tables, enforcing referential integrity.
Calculated Field
A field in databases or spreadsheets that gets its value from the formula or expression defined by other fields.
Relational Databases
A database design that identifies the relationships between stored data elements.
Top-down Design
A design methodology that breaks down a system into smaller parts in order to understand, manage, and implement a complex system.
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