Database Management system

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Across
  1. 3. A database object that improves query performance
  2. 4. A column in a database table
  3. 6. A set of SQL commands used to manipulate data
  4. 9. A field that establishes a relationship between two tables
  5. 13. A set of properties ensuring reliable database transactions
  6. 15. A structure that organizes data into rows and columns
  7. 16. A property ensuring transactions do not interfere with each other
  8. 17. A property ensuring committed transactions are permanent
  9. 18. A command used to undo changes in a transaction
  10. 19. A property ensuring valid state transitions in a database
  11. 20. The process of reducing redundancy in a database
  12. 24. A command used to save all changes in a transaction
  13. 25. A term used in relational databases to refer to a table
Down
  1. 1. An operation that combines rows from two or more tables
  2. 2. The overall structure of a database
  3. 5. The unnecessary duplication of data
  4. 7. A unique identifier for a table record
  5. 8. The process of improving database performance
  6. 10. A sequence of operations performed as a single unit
  7. 11. The language used to interact with databases
  8. 12. A virtual table based on a query result
  9. 14. A set of SQL commands used to define database structures
  10. 21. A technique used to control concurrent access to data
  11. 22. A database object that executes automatically in response to events
  12. 23. A row in a database table