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The graphical representation of a query is .

A. B-Tree

B. graph

C. Query Tree

D. directed graph

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  1. Relationships among relationships can be represented in an-E-R model using
  2. The default level of consistency in SQL is
  3. Relational Algebra does not have
  4. _____ First proposed the process of normalization.
  5. What are the desirable properties of a decomposition
  6. In SQL the word natural can be used with
  7. The ______ language consists of SQL statements for operating on the data (insert, Modify, Delete) in…
  8. Protection of data from unauthorized Disclosure results in loss of _______
  9. Which of the following constitutes a basic set of operations for manipulating relational data?
  10. The part of a database management system which ensures that the data remains in a consistent state is
  11. Which one is true statement :
  12. _____clause is an additional filter that is applied to the result.
  13. Which of the following is not a logical database structure?
  14. The _____ category includes storage media that can be operated on directly by the computers central…
  15. The relational model is based on the concept that data is organized and stored in two-dimensional tables…
  16. Which of the following is not comparison operator?
  17. The graphical representation of a query is .
  18. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  19. Grant and revoke are _____ statements.
  20. Which of the following is not a consequence of concurrent operations?
  21. For using a specific database command is used.
  22. Which of the following concurrency control schemes is not based on the serializability property?
  23. _______ product was acquired by Informix, integrated into its RDBMS and introduced as the Informix Universal…
  24. Checkpoints are a part of
  25. SQL server stores index information in the _____system table
  26. Consider the join of relation R with a relation S. If R has m tuples and S has n tuples, then the maximum…
  27. Dependency preservation is not guaranteed in
  28. The drawback of shadow paging technique are
  29. An advantage of the database management approach is
  30. E-R Modeling is achieved by using ____ diagrams