Computing A2 0.0 / 5 ? ComputingDatabasesA2/A-levelAQA Created by: SpaulseyCreated on: 06-06-16 12:15 Relation A set of attributes and tuples, modelling an entity (A table) 1 of 8 Attribute A property or characteristic of an entity (Name of column in table) 2 of 8 Tuple A set of attribute values (Row in table) 3 of 8 Primary Key Attribute which uniquely identifies a tuple 4 of 8 Relational Database A collection of tables 5 of 8 Composite Key Combination of attributes that uniquely identify a tuple 6 of 8 Foreign Key An attribute in one table that is a primary key in another table 7 of 8 Entity Object, person, event or thing of interest which is recorded 8 of 8
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