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