Tree structures are used to store data in

A. Network model.

B. Relational model.

C. Hierarchical model.

D. File based system.

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

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  1. In a relational schema, each tuple is divided into fields called
  2. In a multi-user database, if two users wish to update the same record at the same time, they are prevented…
  3. SQL server stores index information in the _____system table
  4. A data type or format is specified for each _________
  5. Processed data is called _____
  6. Which of the following ensures the atomicity of the transaction?
  7. Union operator is a :
  8. The fact that all employees of a particular organization should not have salaries more than $10000 is…
  9. E-R Modeling is achieved by using ____ diagrams
  10. Change Staff table by removing default of Assistant for position column
  11. What is a disjoint less constraint?
  12. The rule that a value of a foreign key must appear as a value of some specific table is called a
  13. Protection of data from unauthorized Disclosure results in loss of _______
  14. The clause alter table in SQL can be used to
  15. If both the functional dependencies : XY and YX hold for two attributes X and Y then the relationship…
  16. The transactions like adding an employee, enrolling a student in a course are examples of _______
  17. The _______ is a set of programs to use and / or modify this data.
  18. The keyword to eliminate duplicate rows from the query result in SQL is
  19. A ______ module is typically designed so that it will run on a user workstation or personal computer.
  20. In an ER model,_____ is described in the database by storing its data.
  21. Which of the following is not a characteristic of a relational database model?
  22. Which of the syntax is correct for insert statement? i) insert into values ii) insert into (column list)…
  23. The division operator divides a dividend A of degree m+n by a divisor relation B of degree n and produces…
  24. What are the desirable properties of a decomposition
  25. ______contains information that defines valid values that are stored in a column or data type.
  26. The language that requires a user to specify the data to be retrieved without specifying exactly how…
  27. Relations produced from an E-R model will always be
  28. The part of a database management system which ensures that the data remains in a consistent state is
  29. Which of the following is not a consequence of concurrent operations?
  30. The values of the attribute describes a particular