Relational Algebra is

A. Data Definition Language .

B. Meta Language

C. Procedural query Language

D. None of the above

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  1. The data models defined by ANSI/SPARC architecture are
  2. The full form of GUI is _________
  3. Isolation of the transactions is ensured by
  4. Which of the following is true for network structure?
  5. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  6. _____is a full form of SQL.
  7. Union operator is a :
  8. A _____ is used to define overall design of the database
  9. The drawback of shadow paging technique are
  10. Key to represent relationship between tables is called
  11. The collection of information stored in a database at a particular moment is called as ......
  12. What is a disjoint less constraint?
  13. The default level of consistency in SQL is
  14. The rule that a value of a foreign key must appear as a value of some specific table is called a
  15. If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
  16. Which normal form is considered adequate for normal relational database design?
  17. A DBMS is a ____ user if at most one user can use the system and is mostly restricted to personal computer…
  18. The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
  19. If a transaction T has obtained an exclusive lock on item Q, then T can
  20. Which of the following statement on the view concept in SQL is invalid?
  21. ______defines the structure of a relation which consists of a fixed set of attribute-domain pairs.
  22. Immediate database modification technique uses
  23. The data in the database at a particular moment of time is called the _______
  24. The ____ operator joins two or more conditions and displays rows only if that rows data satisfies all…
  25. Create a table with the following attributes: Employee(EMPNO integer, EMPNAME of 10 characters)
  26. Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
  27. In E-R Diagram total participation is represented by
  28. _____ database is used to provide statistical information or summaries of values based on various criteria.
  29. The fact that all employees of a particular organization should not have salaries more than $10000 is…
  30. _____ is a utility to capture a continuous record of server activity and provide auditing capability.