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______defines the structure of a relation which consists of a fixed set of attribute-domain pairs.

A. Instance

B. Program

C. Schema

D. Super Key

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  1. ______contains information that defines valid values that are stored in a column or data type.
  2. By ______ an area on disk in certain ways, one can make it represent a bit value of either zero (0)…
  3. The language that requires a user to specify the data to be retrieved without specifying exactly how…
  4. The collection of information stored in a database at a particular moment is called as ......
  5. In a relational schema, each tuple is divided into fields called
  6. If both the functional dependencies : XY and YX hold for two attributes X and Y then the relationship…
  7. Wait-for graph is used for
  8. DROP is a statement in SQL.
  9. In SQL the word natural can be used with
  10. Which of the following is not a consequence of concurrent operations?
  11. The clause alter table in SQL can be used to
  12. The one guideline to be followed while designing the database is
  13. The statement that is executed automatically by the system as a side effect of the modification of the…
  14. If a transaction T has obtained an exclusive lock on item Q, then T can
  15. A _____ is used to define overall design of the database
  16. The ______ key of a relation is the attribute (column) or collection of attributes, which uniquely identify…
  17. An outstanding functionality of SQL is its support for automatic_____ to the target data.
  18. Which of the following is not a consequence of non-normalized database?
  19. The drawback of shadow paging technique are
  20. A ______ module is typically designed so that it will run on a user workstation or personal computer.
  21. The transactions like adding an employee, enrolling a student in a course are examples of _______
  22. The fact that information in the data warehouse changes far less often and may be regarded as non-real-time…
  23. Given the following relation S(SNO,SNAME,CITY) write a query to update the value of CITY to KANPUR for…
  24. The data models defined by ANSI/SPARC architecture are
  25. A table can have only one
  26. Which of the following is not a characteristic of a relational database model?
  27. The size of a data item is called its _______, which can be a field of some record or may be a larger…
  28. A logical schema
  29. If an entity can belong to only one lower level entity then the constraint is
  30. Which of the following constitutes a basic set of operations for manipulating relational data?