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Dependency preservation is not guaranteed in

A. BCNF

B. 3NF

C. PJNF

D. DKNF

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  3. Which of the following statement on the view concept in SQL is invalid?
  4. Union operator is a :
  5. If an entity can belong to only one lower level entity then the constraint is
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  8. Which of the following is not comparison operator?
  9. The statement that is executed automatically by the system as a side effect of the modification of the…
  10. A top-to-bottom relationship among the items in a database is established by a
  11. _____ command can be used to modify a column in a table
  12. The metadata is created by the
  13. The size of a data item is called its _______, which can be a field of some record or may be a larger…
  14. An outstanding functionality of SQL is its support for automatic_____ to the target data.
  15. Relations produced from an E-R model will always be
  16. DROP is a statement in SQL.
  17. ______ keyword is used to find the number of values in a column.
  18. When an E-R diagram is mapped to tables, the representation is redundant for
  19. DBMS is a collection of _____ that enables user to create and maintain a database.
  20. If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
  21. Processed data is called _____
  22. The normal form that is not necessarily dependency preserving is
  23. A ____ key specifies a uniqueness constraint that no two distinct tuples in any state r of relation…
  24. Protection of data from unauthorized Disclosure results in loss of _______
  25. An advantage of the database management approach is
  26. The data in the database at a particular moment of time is called the _______
  27. Create a table with the following attributes: Employee(EMPNO integer, EMPNAME of 10 characters)
  28. The clause in SQL that specifies that the query result should be sorted in ascending or descending order…
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