Across
- 3. data lies in different place with different format
- 5. duplication of data
- 8. a model that has entity and a characteristic known as attributes
- 14. is a process of transforming request and result between three levels
- 15. collection of data get the meaning
- 18. to store metadata
- 19. a model that contain a two dimensional table with common field
- 20. data about data
- 22. an Analyst can be considered as ____ user
- 27. is a ability by which one can change the data at one level without affecting the data at another level.
- 30. ______ manager checks correctness of data
- 31. _______ level defines the part of overall data of database to be reveal.
- 33. ______ level explain what data going to be stored and what relationship between them.
- 34. Convert DML(high level) to low level
- 35. fact that can be stored or recorded
- 36. is a disadvantage of DBMS
- 37. ____ manager fetches data from disk storage to memory(cache)
- 38. multiple dat to update the data simultaneously
Down
- 1. is DCL command
- 2. information to select efficient way to execute query
- 4. ____ manager preserve atomicity and concurrency
- 6. an architecture in which database directly available to the user
- 7. ______ level describe how the data are actually stored on storage device.
- 9. a common field between to table to maintain relationship
- 10. a model has many to many relationship
- 11. various copy of data
- 12. database + recovery + backup
- 13. to provide faster access to data
- 16. 0% and 100% operation
- 17. a farmer can be considered as ___ user
- 21. accurate and correct data
- 23. is TCL command
- 24. an architecture in which one application layer between data base and end user
- 25. a model contains a child node with single parent node
- 26. Executes low level instructions
- 27. means retrieving only required amount of information of the system and hiding background details
- 28. is a DDL command
- 29. is DML command
- 32. ____ manager allocates the space on disk
- 34. collection of logical related data