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In a relational schema, each tuple is divided into fields called

A. Relations

B. Queries

C. Domains

D. All of the above

Correct Answer : A.


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  1. Protection of data from unauthorized Disclosure results in loss of _______
  2. Assume transaction A holds a shared lock R. If transaction B also requests for a shared lock on R.
  3. Which of the following is not a characteristic of a relational database model?
  4. In E-R Diagram total participation is represented by
  5. Cascading rollback is avoided in all protocol except
  6. DBMS is a collection of _____ that enables user to create and maintain a database.
  7. The full form of GUI is _________
  8. The graphical representation of a query is .
  9. In 2NF
  10. ______ keyword is used to find the number of values in a column.
  11. An advantage of the database management approach is
  12. The _______ is a set of programs to use and / or modify this data.
  13. Which of the following is true for network structure?
  14. Key to represent relationship between tables is called
  15. Given the following relation S(SNO,SNAME,CITY) write a query to update the value of CITY to KANPUR for…
  16. The metadata is created by the
  17. ______is a preferred method for enforcing data integrity
  18. Which one is correct statement?Logical data independence provides following without changing application…
  19. Union operator is a :
  20. ____specifies a search condition for a group or an aggregate.
  21. Grant and revoke are _____ statements.
  22. If both the functional dependencies : Xï®Y and Yï®X hold for two attributes X and Y then the relationship…
  23. operator is used to compare a value to a list of literals values that have been specified.
  24. As per equivalence rules for query transformation, selection operation distributes over
  25. The common column is eliminated in
  26. Dependency preservation is not guaranteed in
  27. A logical schema
  28. The size of a data item is called its _______, which can be a field of some record or may be a larger…
  29. The relational model is based on the concept that data is organized and stored in two-dimensional tables…
  30. A _____ is a logical unit of database processing that includes one or more data access operations that…