1. Which of the following elements is not  required for conceptualising data mode ?

2. Which steps are  required in Data Processing Cycle?

3. When structure of AIS is based on both human and computer resources. It is called ……………….. AIS.

4. ________ model represents the database as a collection of relations, in the form of data tables. 

5. Which entity does not have key attributes of its own

6. A ……………….. is a collection of all entities of a particular entity type.

7. Which attribute has more than one attribute with unique values

8. What constraint does the weak entity type always have with respect to its identifying relationship?

9. The _______ operation is used to insert, that is add a new tuple in an existing relation.

10. ________ integrity limitation rises because of the links between various entities. 

11. All the relation have ______ default super key, which is the unification of all its attributes.

12. What does ER model stand for?

13. The ……………… for binary relationship specifies the number of relationship instances that an entity can participate in.

14. The database design consisting of the inter-related data tables is to be refined to reduce or eliminate the possibility of irrelevant data items. This process is called _______.

15. ER model is used to-

16. State True or False –

The complete absence of WHERE clause in SELECT statement implies that no tuples of a relation shall be selected.

17. ______ cycle is a process of transforming the data into useful information for making an important decision.

18. Each simple attribute of an entity type is associated with a value set called …………… of values.

19. Concept of structuring database for accounting are 

20. Data transformation is known ________.