DATABASE BASIC INFORMATION

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Across
  1. 2. attribute to uniquely identify an entity
  2. 5. hiding information and details between levels
  3. 9. operation to retrieve data using a DBMS
  4. 10. meaningful data
  5. 12. operation to modify, insert, delete data
  6. 14. attribute that can be derived from other attributes
  7. 16. reflection of a mini world
  8. 17. data representation on ER database model
Down
  1. 1. relation between entities
  2. 3. fact that can be recorded
  3. 4. relationship with only one entity
  4. 6. attribute with only a single value
  5. 7. level with the technical details
  6. 8. attributes that can be divided into further parts
  7. 11. number of entities associated via a relationship
  8. 13. disadvantage of file system
  9. 14. software that manages databases
  10. 15. capacity to make changes without affecting other levels