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In an ER model,_____ is described in the database by storing its data.

A. Entity

B. Attribute

C. Relationship

D. Notation

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

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  1. In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
  2. The middleware databases in which the business rules act are applicable to _______ tier architectures
  3. The data in the database at a particular moment of time is called the _______
  4. Key to represent relationship between tables is called
  5. Which of the following is true for network structure?
  6. Immediate database modification technique uses
  7. Which of the following statement on the view concept in SQL is invalid?
  8. The ____ operator joins two or more conditions and displays rows only if that rows data satisfies all…
  9. Which of the following is not a logical database structure?
  10. Create a table with the following attributes: Employee(EMPNO integer, EMPNAME of 10 characters)
  11. In multiple granularity of locks SIX lock is compatible with
  12. A table can have only one
  13. Tree structures are used to store data in
  14. The division operator divides a dividend A of degree m+n by a divisor relation B of degree n and produces…
  15. In an E-R diagram double lines indicate
  16. ______is a special type of integrity constraint that relates two relations & maintains consistency across…
  17. _____ command can be used to modify a column in a table
  18. The graphical representation of a query is .
  19. ______contains information that defines valid values that are stored in a column or data type.
  20. DFD stands for
  21. If an entity can belong to only one lower level entity then the constraint is
  22. If a transaction T has obtained an exclusive lock on item Q, then T can
  23. Cascading rollback is avoided in all protocol except
  24. The _____ category includes storage media that can be operated on directly by the computers central…
  25. Relationships among relationships can be represented in an-E-R model using
  26. A relation is in attribute of other composite key. if an attribute of a composite key is dependent on…
  27. Given the following relation S(SNO,SNAME,CITY) write a query to update the value of CITY to KANPUR for…
  28. The concept of mapping of ______ entity types is the concept in which the for each strong entity type…
  29. A top-to-bottom relationship among the items in a database is established by a
  30. Isolation of the transactions is ensured by