Question

Currently I am taking database management system and my teacher wants my to fill in these fill in the blank questions.

1.A single piece of data is a _______________________.

2.______________________________invented the first punched card.

3.Name one challenge with storing data today.

4.Software to manage data is called __________________________.

5.Herman Hollerith founded ______________________________.

6.DDL is known as ______________________________________.

7.A basic SQL statement has the following 3 parts _______________, _____________________ and __________________________.

8.In the like clause, what matches any group of characters of any length? _________________

     

9.T or F, Or comes before And?

10. The where-clause limits the number of ______________ that are selected from the database.

11.Three typical cardinalities are ________________________, _______________________________, and _______________________________

12.Intersection data is the same as this type of entity _________________________.

13.A relationship of one entity to occurrences of the same type of entity is called _______________________________.

14.A ________________________________ involves 3 different entity types.

15.Modality is _____________________________________________.

           

16.Four operations that can be performed on stored data are ______________________________ , _______________________________, _______________________________, _______________________________

17.The ability to tie pieces of related data together is called ____________________________.

18.In general data redundancy is good for a system. T or F. ______________

     

19.Name three data control issues.

20.Hierarchical databases are known as ______________________ approaches to database.