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The normalization was first proposed by .

A. Code

B. Codd

C. Boyce Codd

D. Boyce

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  1. The concept of mapping of ______ entity types is the concept in which the for each strong entity type…
  2. In multiple granularity of locks SIX lock is compatible with
  3. Shadow paging has
  4. Between DRAM and magnetic disk storage another form of memory, called ______ memory is becoming common…
  5. A _____ is used to define overall design of the database
  6. In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.
  7. The normalization was first proposed by .
  8. Relationships among relationships can be represented in an-E-R model using
  9. For correct behaviour during recovery, undo and redo operation must be
  10. Relational Algebra does not have
  11. Precedence graphs help to find a
  12. In an E-R diagram double lines indicate
  13. Create a table with the following attributes: Employee(EMPNO integer, EMPNAME of 10 characters)
  14. In b-tree the number of keys in each node is than the number of its children.
  15. The rule that a value of a foreign key must appear as a value of some specific table is called a
  16. What is a disjoint less constraint?
  17. SQL server stores index information in the _____system table
  18. Which of the following ensures the atomicity of the transaction?
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    If both the functional dependencies : XY and YX hold for two attributes X and Y then the relationship between X and Y is
  20. The one guideline to be followed while designing the database is
  21. Which of the following relational algebraic operations is not from set theory?
  22. In SQL the statement select * from R, S is equivalent to
  23. Employees in a company are each assigned their own office, i.e. for each employee there exists a unique…
  24. A ____ key specifies a uniqueness constraint that no two distinct tuples in any state r of relation…
  25. Key to represent relationship between tables is called
  26. Which normal form is considered adequate for normal relational database design?
  27. The values of the attribute describes a particular
  28. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  29. In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
  30. The normal form that is not necessarily dependency preserving is