In multiple granularity of locks SIX lock is compatible with



C. S


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  1. A logical schema
  2. ____ table store information about database or about the system.
  3. Key to represent relationship between tables is called
  4. DROP is a statement in SQL.
  5. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  6. Isolation of the transactions is ensured by
  7. The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
  8. Which one is correct statement?Logical data independence provides following without changing application…
  9. In SQL the word natural can be used with
  10. For correct behaviour during recovery, undo and redo operation must be
  11. A relational database developer refers to a record as
  12. The fact that information in the data warehouse changes far less often and may be regarded as non-real-time…
  13. _____clause is an additional filter that is applied to the result.
  14. Manager salary details are hidden from the employee .This is
  15. Wait-for graph is used for
  16. The transactions like adding an employee, enrolling a student in a course are examples of _______
  17. _____ First proposed the process of normalization.
  18. The relational model is based on the concept that data is organized and stored in two-dimensional tables…
  19. Which of the following is true for network structure?
  20. Drop Table cannot be used to drop a table referenced by a ______ constraint.
  21. In SQL the statement select * from R, S is equivalent to
  22. Dependency preservation is not guaranteed in
  23. _______ product was acquired by Informix, integrated into its RDBMS and introduced as the Informix Universal…
  24. In multiple granularity of locks SIX lock is compatible with
  25. What is a disjoint less constraint?
  26. Which of the following is not a consequence of concurrent operations?
  27. The graphical representation of a query is .
  28. Which is the best file organization when data is frequently added or deleted from a file?
  29. The data models defined by ANSI/SPARC architecture are
  30. Which normal form is considered adequate for normal relational database design?