The transactions like adding an employee, enrolling a student in a course are examples of _______

A. Logical

B. Physical

C. None

D. Theoretical

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

You can do it
  1. If an entity can belong to only one lower level entity then the constraint is
  2. In an E-R, Y is the dominant entity and X is a subordinate entity. Then which of the following is incorrect…
  3. A relational database developer refers to a record as
  4. _____ First proposed the process of normalization.
  5. _____ command can be used to modify a column in a table
  6. Which two files are used during operation of the DBMS?
  7. The middleware databases in which the business rules act are applicable to _______ tier architectures
  8. Tree structures are used to store data in
  9. Which of the following constitutes a basic set of operations for manipulating relational data?
  10. Which one is true statement :
  11. Processed data is called _____
  12. The normal form that is not necessarily dependency preserving is
  13. DFD stands for
  14. ______ keyword is used to find the number of values in a column.
  15. Relationships among relationships can be represented in an-E-R model using
  16. _______ product was acquired by Informix, integrated into its RDBMS and introduced as the Informix Universal…
  17. A _____ is a logical unit of database processing that includes one or more data access operations that…
  18. A table can have only one
  19. For using a specific database …………… command is used.
  20. The data models defined by ANSI/SPARC architecture are
  21. Which of the following is true for network structure?
  22. Which one is correct statement?Logical data independence provides following without changing application…
  23. ____specifies a search condition for a group or an aggregate.
  24. Which of the following addressing modes permits relocation without any change over in the code?
  25. When an E-R diagram is mapped to tables, the representation is redundant for
  26. The part of a database management system which ensures that the data remains in a consistent state is
  27. Wait-for graph is used for
  28. Union operator is a :
  29. The graphical representation of a query is .
  30. In an ER diagram the ___shape specifies the Attibute and a ____ shape specifies the primary key attribute.