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______contains information that defines valid values that are stored in a column or data type.

A. Default

B. Index

C. Rule

D. View

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  1. ………………… approach reduces time and effort required for design…
  2. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  3. The middleware databases in which the business rules act are applicable to _______ tier architectures
  4. In an E-R diagram double lines indicate
  5. Which of the following is not a consequence of concurrent operations?
  6. DFD stands for
  7. The _______ is a set of programs to use and / or modify this data.
  8. Relational Algebra is
  9. The transactions like adding an employee, enrolling a student in a course are examples of _______
  10. Which of the following is true for network structure?
  11. DBMS helps achieve
  12. Which one is correct statement?Logical data independence provides following without changing application…
  13. Tree structures are used to store data in
  14. If an entity can belong to only one lower level entity then the constraint is
  15. Which of the syntax is correct for insert statement? i) insert into values ii) insert into (column list)…
  16. The language that requires a user to specify the data to be retrieved without specifying exactly how…
  17. The metadata is created by the
  18. In SQL the word natural can be used with
  19. If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
  20. Which of the following is not comparison operator?
  21. Relationships among relationships can be represented in an-E-R model using
  22. Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
  23. _____is a full form of SQL.
  24. A top-to-bottom relationship among the items in a database is established by a
  25. In multiple granularity of locks SIX lock is compatible with
  26. A weak entity has an ______ dependency on its owner entity, which can be used for both ON UPDATE and…
  27. A transaction is in state after the final statement has been executed.
  28. Which of the following ensures the atomicity of the transaction?
  29. Which of the following is not a consequence of non-normalized database?
  30. For correct behaviour during recovery, undo and redo operation must be