Across
- 2. A rule that limits the values a column can take
- 4. A request for data from a database
- 5. The structure of a database
- 6. A key linking two tables together
- 10. A language used to manage databases
- 11. A data structure that improves search speed
- 12. A column in a table
- 14. Unnecessary duplication of data
- 15. Properties ensuring reliable database transactions
- 17. A structured collection of data
- 18. The process of copying data from one database to another
- 19. A virtual table derived from other tables
- 20. A SQL operation to combine tables
Down
- 1. Process of reducing redundancy in a database
- 3. A procedure that executes automatically in response to an event
- 7. An object in a database that stores data
- 8. A unique identifier for a record
- 9. A sequence of database operations treated as a unit
- 13. A single row in a table
- 16. A situation where two transactions wait for each other to release resources