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

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

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

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

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

6. State True or False –

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

7. ER model is used to-

8. What does ER model stand for?

9. Which steps are  required in Data Processing Cycle?

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

11. 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 _______.

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

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

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

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

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

17. Data transformation is known ________. 

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

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

20. Concept of structuring database for accounting are