1. BUS2206 Access Lab
Queries
Second Term,

2. Part I
Introduction

3. Introduction (Based on the Lab Textbook)
Creating Table (P. 13 – P. 17)
Database schema
Tables relationships (P. 20 – P. 22)
Creating Queries (P. 17 – P. 37)
QBE (Query By Example)
Creating Reports (P. 37 – P. 42)
Creating Forms (P. 46 – P. 48)
For input control based on Tables and Queries

4. The Schema and Metadata
Chapter 7
The Schema and Metadata
Schema: a plan that describes the structure of the database, including:
Names and sizes of fields
Identification of primary keys
Relationships
Data dictionary: a repository of information about the data and its organization
Also called metadata: the data about the data

5. Employee Table Data Dictionary

6. Wage Table Data Dictionary

7. Hours Worked Table Data Dictionary
Composite Key

8. “Date” Input Mask Example
Date format is Medium Date, such as: 04-Oct-16
In order to ensure the input date is in correct format, access uses input mask to control the input data:
00\->L<LL\-00;0;_
Where, 0 is a mandatory digit;
L must be a letter;
> converts letter to upper case and,
< converts letter to lower case;
\ keep the next character as it is.

9. Enter Data for Tables

10. Chapter 7
Data Modeling
Databases must be carefully planned and designed to meet business goals
Data modeling: analysis of an organization’s data and identification of the data relationships. It develops a conceptual blueprint of the database.
Entity relationship diagram: a graphical representation of all entity relationships

11. Data Modeling (continued)
Chapter 7
Data Modeling (continued)
One-to-many relationship
Many-to many-relationship

12. Create Table Relationships in Access
One-to many-relationship
One-to-one relationship

13. Part II
Queries

14. Create Query: Hourly Pay Employees (1)

15. Create Query: Hourly Pay Employees (2)

16. Query: New Hourly Pay Rate (1) P.17

17. Create Query: New Hourly Pay Rate (2)

18. Create Query: Join Two Tables (1)

19. Query: Join Two Tables (2)

20. Query: Citizen Hourly Pay (1) P.20

21. Create Query: Citizen Hourly Pay (2)

22. Query: Calculate Wages Pay in Week 2 (1) P.21

23. Query: Calculate Wages Pay in Week 2 (2)

24. Query: Count number employees (1) P.22
Step 2
Step 1
Step 3

25. Query: Calculate Wages Pay (2)

26. Better Title for Calculate Wages Pay (3)

27. “Total” Field Summary P.22

28. Query: Average Hourly Wage (1) P.25

29. Query: Average Hourly Wage (2)

30. Query of a query: New Avg Rate (1) P.26

31. Query of a query: New Avg Rate (2)
Calculated Field
Select a query

32. Query of a query: New Avg Rate (3)

33. Query of a query: New Avg Rate (4)

34. Query: Date() Function (1) P.27

35. Query: Date() Function (2)

36. A new Table for Time Arithmetic(1) P.28

37. A new Table for Time Arithmetic(2) P.28

38. Query: Calculate Hours Worked (1) P.29
P.29 on why * 24

39. Query: Calculate Hours Worked (2)

40. Query: Update Records (1) P.30

41. Query: Update Records (2)

42. Query: Delete a Record (1) P.32

43. Query: Delete a Record (2)

44. Query: Delete a Record (3)

45. Parameter Query (1) P.32

46. Parameter Query ()

47. Query Exercise 1 P.33

48. Query Exercise 2 P.34

49. Query Exercise 3 P.35

50. Query Exercise 4 P.35

51. Query Exercise 5 P.36

52. Query Exercise 6 P.36

53. End of Access Query Lab