In an E-R diagram double lines indicate

A. Total participation.

B. Multiple participation.

C. Cardinality N.

D. None of the above.

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

You can do it
  1. In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
  2. _____ First proposed the process of normalization.
  3. Drop Table cannot be used to drop a table referenced by a ______ constraint.
  4. _____is a full form of SQL.
  5. Consider the join of relation R with a relation S. If R has m tuples and S has n tuples, then the maximum…
  6. For using a specific database …………… command is used.
  7. Which of the following relational algebraic operations is not from set theory?
  8. Dependency preservation is not guaranteed in
  9. In a relational schema, each tuple is divided into fields called
  10. ____specifies a search condition for a group or an aggregate.
  11. _____ database is used to provide statistical information or summaries of values based on various criteria.
  12. ____ table store information about database or about the system.
  13. In SQL the statement select * from R, S is equivalent to
  14. The part of a database management system which ensures that the data remains in a consistent state is
  15. Which of the following statement on the view concept in SQL is invalid?
  16. Which of the following addressing modes permits relocation without any change over in the code?
  17. _____clause is an additional filter that is applied to the result.
  18. If two relations R and S are joined, then the non matching tuples of both R and S are ignored in
  19. Which of the following constitutes a basic set of operations for manipulating relational data?
  20. The fact that all employees of a particular organization should not have salaries more than $10000 is…
  21. Union operator is a :
  22. An advantage of the database management approach is
  23. Which of the syntax is correct for insert statement? i) insert into values ii) insert into (column list)…
  24. Wait-for graph is used for
  25. Which of the following relational algebra operations do not require the participating tables to be union-compatible?
  26. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  27. The division operator divides a dividend A of degree m+n by a divisor relation B of degree n and produces…
  28. ______contains information that defines valid values that are stored in a column or data type.
  29. Which of the following is not a property of transactions?
  30. The full form of GUI is _________