Databases CW

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Across
  1. 4. entities are organised into these
  2. 7. a set of data in a database
  3. 8. extracting information from a structured database
Down
  1. 1. key An attribute which uniquely identifies a record
  2. 2. A property of an entity
  3. 3. key An attribute which is the primary key in one table, and creates a join between two tables
  4. 5. A category of person or thing about which data is held
  5. 6. the language behind databases