Across
- 5. A visual representation of entities and relationships
- 9. An association between two or more entities
- 11. The process of converting an ER model into a relational schema
- 12. A collection of related data in rows and columns
- 13. A unique identifier for a record in a table
- 15. A database object that improves query performance
- 16. A collection of similar entities
- 18. A real-world object represented in a database
- 20. Combining data from multiple tables
Down
- 1. A rule enforced on data in a database
- 2. A field in one table that refers to the primary key in another table
- 3. The number of instances in a relationship
- 4. A characteristic or property of an entity
- 6. A relationship between attributes where one determines another
- 7. The structure of a database
- 8. A key consisting of multiple attributes
- 10. The process of organizing data to reduce redundancy
- 14. A virtual table based on a query
- 17. The language used to manage and query databases
- 19. A single row in a database table