Relationships among relationships can be represented in an-E-R model using

A. Aggregation

B. Association

C. Weak entity sets

D. Weak relationship sets

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

You can do it
  1. SQL server stores index information in the _____system table
  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 comparison operator?
  4. In SQL the statement select * from R, S is equivalent to
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  6. Which of the following relational algebraic operations is not from set theory?
  7. The collection of information stored in a database at a particular moment is called as ......
  8. By ______ an area on disk in certain ways, one can make it represent a bit value of either zero (0)…
  9. The relational model is based on the concept that data is organized and stored in two-dimensional tables…
  10. DROP is a statement in SQL.
  11. The data in the database at a particular moment of time is called the _______
  12. What are the desirable properties of a decomposition
  13. DBMS is a collection of _____ that enables user to create and maintain a database.
  14. Data independence means
  15. Which of the following is not a logical database structure?
  16. The set of all values that can be taken by the attribute is called as _______ of the attribute.
  17. For using a specific database …………… command is used.
  18. Precedence graphs help to find a
  19. A data type or format is specified for each _________
  20. The clause in SQL that specifies that the query result should be sorted in ascending or descending order…
  21. Data items grouped together for storage purposes are called a
  22. ____ table store information about database or about the system.
  23. Which of the following constitutes a basic set of operations for manipulating relational data?
  24. The statement that is executed automatically by the system as a side effect of the modification of the…
  25. The drawback of shadow paging technique are
  26. Wait-for graph is used for
  27. Dependency preservation is not guaranteed in
  28. Which one is correct statement?Logical data independence provides following without changing application…
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