The data models defined by ANSI/SPARC architecture are

A. Conceptual, physical and internal

B. Conceptual, view and external

C. Logical, physical and internal

D. Logical, physical and view

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  1. As per equivalence rules for query transformation, selection operation distributes over
  2. The drawback of shadow paging technique are
  3. _______ product was acquired by Informix, integrated into its RDBMS and introduced as the Informix Universal…
  4. The ____ operator joins two or more conditions and displays rows only if that rows data satisfies all…
  5. The part of a database management system which ensures that the data remains in a consistent state is
  6. Which one is correct statement?Logical data independence provides following without changing application…
  7. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  8. Consider the join of relation R with a relation S. If R has m tuples and S has n tuples, then the maximum…
  9. Wait-for graph is used for
  10. If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
  11. The normal form that is not necessarily dependency preserving is
  12. The clause alter table in SQL can be used to
  13. Which one is true statement :
  14. Key to represent relationship between tables is called
  15. Cascading rollback is avoided in all protocol except
  16. The full form of GUI is _________
  17. The default level of consistency in SQL is
  18. Between DRAM and magnetic disk storage another form of memory, called ______ memory is becoming common…
  19. If an entity can belong to only one lower level entity then the constraint is
  20. The _____ category includes storage media that can be operated on directly by the computers central…
  21. The transactions like adding an employee, enrolling a student in a course are examples of _______
  22. The size of a data item is called its _______, which can be a field of some record or may be a larger…
  23. Protection of data from unauthorized Disclosure results in loss of _______
  24. The rule that a value of a foreign key must appear as a value of some specific table is called a
  25. DBMS helps achieve
  26. A relational database developer refers to a record as
  27. ______contains information that defines valid values that are stored in a column or data type.
  28. For correct behaviour during recovery, undo and redo operation must be
  29. The data models defined by ANSI/SPARC architecture are
  30. _____clause is an additional filter that is applied to the result.