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____ table store information about database or about the system.

A. SQL

B. System

C. Nested

D. None of these

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. Between DRAM and magnetic disk storage another form of memory, called ______ memory is becoming common…
  2. Isolation of the transactions is ensured by
  3. Create a table with the following attributes: Employee(EMPNO integer, EMPNAME of 10 characters)
  4. _____ database is used to provide statistical information or summaries of values based on various criteria.
  5. DBMS is a collection of _____ that enables user to create and maintain a database.
  6. If the closure of an attribute set is the entire relation then the attribute set is a
  7. Which of the following relational algebraic operations is not from set theory?
  8. The data in the database at a particular moment of time is called the _______
  9. A data type or format is specified for each _________
  10. The one guideline to be followed while designing the database is
  11. In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.
  12. If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
  13. Relationships among relationships can be represented in an-E-R model using
  14. When an E-R diagram is mapped to tables, the representation is redundant for
  15. Which of the following is not a characteristic of a relational database model?
  16. Dependency preservation is not guaranteed in
  17. Grant and revoke are _____ statements.
  18. An advantage of the database management approach is
  19. A list consists of last names, first names, addresses and pin codes. If all people in the list have…
  20. In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
  21. In 2NF
  22. What will be the number of columns and rows respectively obtained for the operation, A- B, if A B are…
  23. Employees in a company are each assigned their own office, i.e. for each employee there exists a unique…
  24. The collection of information stored in a database at a particular moment is called as ......
  25. A top-to-bottom relationship among the items in a database is established by a
  26. Whenever two independent one-to-many relationships are mixed in the same relation, a __________ arises.
  27. ______ keyword is used to find the number of values in a column.
  28. _____clause is an additional filter that is applied to the result.
  29. For using a specific database …………… command is used.
  30. ______is a special type of integrity constraint that relates two relations & maintains consistency across…