21. …………… database is used as template for all databases
22. The DBMS utility..................... allows reconstructing the correct state of database from the backup and history of transactions.
23. The DBMSutility,………………allows to reconstruct the correct state of database from the backup and history of transactions.
24. An outstanding functionality of SQL is its support for automatic ………… to the target data.
25. A ……………… does not have a distinguishing attribute if its own and mostly are dependent entities, which are part of some another entity.
26. Which is proper subset designed to support ‘views belonging to different classes of users in order to hid or protect information:
27. For some relations, changing the data can have undesirable consequences called:
28. Which is a bottom-up approach to database design that design by examining the relationship between attributes:
29. Which is the process of breaking a relation into multiple relations:
30. …………… is used to determine whether of a table contains duplicate rows.
USA - United States of America Canada United Kingdom Australia New Zealand South America Brazil Portugal England Scotland Norway Ireland Denmark France Spain Poland Netherland Germany Sweden South Africa Ghana Tanzania Nigeria Kenya Ethiopia Zambia Singapore Malaysia India Pakistan Nepal Taiwan Philippines Libya Cambodia Hong Kong China UAE - Saudi Arabia Qatar Oman Kuwait Bahrain Dubai Israil and many more....