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

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

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

4. Concept of structuring database for accounting are 

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

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

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

8. ER model is used to-

9. What does ER model stand for?

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

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

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

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

14. Data transformation is known ________. 

15. 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 _______.

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

17. State True or False –

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

18. Which steps are  required in Data Processing Cycle?

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

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