KMPk Presentation Note

1. TOPIC 6
DATABASE
6.1 Introduction to Database
6.2 Basic Concept of Database
6.3 Database Object
DATABASE

2. 6.1 Introduction to Database
At the end of this topic,
students should be able to:
1. Define
● Database
● Database Management System (DBMS)
2. Describe advantages and disadvantages of database
DATABASE
Learning Outcomes

3. DATABASE
6.1 Introduction to Database
Database
● Can be define as ;
● An integrated collection of related data OR
● Collection of data organized in a manner that allows access,
retrieval, and use of that data – Shelly & Varmaat, 2012, OR
● A collection of data, manage and organized by a database
management system – Petersen, 2002
● Related data, e.g. : information stored in University
(students, courses, faculty, students taking
courses, faculty teaching courses … )
● Integrated: all data is stored in a uniform way on
secondary storage.

4. DATABASE
6.1 Introduction to Database
Database Management System (DBMS)
● Can be define as ;
● A collection of programs that is used to create, maintain and
manipulate data in the database, OR
● Specific type of software for creating, storing, organizing and
accessing data from a database.
● Provide an interface between the database and its
users and other application programs
● DBA, a database administrator is the people
responsible for managing database, who sets up and
manage a database.

5. DATABASE
6.1 Introduction to Database
DBMS’s example software

6. File System versus Databases
Almost all application programs use either these two
approaches (in managing data and information);
DATABASE
6.1 Introduction to Database

7. ● Each department in an organization has its own set
of files.
● The records in one file may not relate to the records
in any other file.
● Organizations have used file processing systems
for many years.
DATABASE
6.1 Introduction to Database

8. ● Weakness 1 , redundancy of data
Each department in an organization has its own set
of files
● Weakness 2 , isolation of data
The records in one file may not relate to the records
in any other file.
● Weakness 3 , hard to maintain security of data and
information stored in files
Organizations have used file processing systems
for many years.
DATABASE
6.1 Introduction to Database

9. ● Database system
– many programs
and users share the
data in the database.
● Example 1: a school’s
database most likely at a
minimum contains data about
students, instructors, schedule
of classes, and student
schedules.
● Example 2: a library’s
database stored data about
book’s title, the author, ISBN
number.
DATABASE
6.1 Introduction to Database

10. Database System,
graphical representation of a School Database
DATABASE
6.1 Introduction to Database

11. DATABASE
6.1 Introduction to Database

12. Advantages
1. Sharing data
- data in a database environment is shared over a
network.
2. Easier Access
- better data accessibility using standard data query
language (SQL). allows end-user to access and
maintain data.
3. Reduced data redundancy
- reduce data redundancy/duplication by improving
data sharing.
DATABASE
6.1 Introduction to Database

13. Advantages (continued)
4. Security
- improved data security (backup recovery, concurrency, access control)
5. Reduced development time
- is easy and fast to develop programs
6. Higher data integrity
- increasing data integrity through data independence from applications
program
7. improve data quality
- reducing update errors (using same format) thus increasing data consistency
DATABASE
6.1 Introduction to Database

14. Disadvantages
1. Complex, difficult, and time consuming to design
2. Special training required for all programmers and users
3. Require more memory, storage and processing power
4. Expensive hardware and software cost to setup database
5. Extensive conversion costs in moving from a file-based
system to a database system
DATABASE
6.1 Introduction to Database

15. 6.2 Basic Concept of Database
At the end of this topic,
students should be able to:
1. Explain the basic concept of database
DATABASE
Learning Outcomes

16. 6.2 Basic Concept of Database

17. 6.2 Basic Concept of Database

18. Data
Hierarchy
6.2 Basic Concept of Database

19. ● Data Hierarchy
– refers to the organization of data in a database.
● table/s or file/s
● record/s (in rows)
● field/s (in columns)
● character
6.2 Basic Concept of Database

20. ● Data Hierarchy
– a database contains one or more
tables. A table contains a number of
records. A record contains one or
more fields.
6.2 Basic Concept of Database

21. ● Data Hierarchy
– a database files stored on disk (usually
stored in the form of tables) , each files
has its own records and each records
has its own fields.
6.2 Basic Concept of Database

22. 6.2 Basic Concept of Database
Adding new contact in
Samsung Galaxy S III
6.2 Basic Concept of Database

23. ● touch on the Apps icon
– The one with rectangle grid
● touch on Contact icon
6.2 Basic Concept of Database

24. 6.2 Basic Concept of Database
touch on plus
symbol
(+) to open up
a new Create
contact screen
User will able to see the
Create contact screen, and fill
in the Name’s field and etc
and user have
the option to
add another
field, such as
Mobile, Home,
Address,
Email’s field
and etc

25. touch on Save
to keep the
new contact
(that you’ve
just added) in
your phone
6.2 Basic Concept of Database
• Contact Management features in any
mobile phone is an example of
database in your device (because it is
an organized collection of data – your
friend’s contact number stored in your
phone)
• Create contact enable you to see many
field (NAME, MOBILE, HOME .. ) – in
that case it is a table with a lot of fields
(depends on user to add or to remove
fields)
• When you Save, you actually saving –
a record in your phone.
Explain:

26. 6.2 Basic Concept of Database
Contact Management features in any
mobile phone is an example of database
in your device (because it is an organized
collection of data – your friend’s contact
number stored in your phone)
Create contact enable you to see many
field (NAME, MOBILE, HOME .. ) – in that
case it is a table with a lot of fields
(depends on user to add or to remove
fields)
When you Save, you actually saving – a
record in your phone.

27. TABLE RECORD FIELD
• also known as database
file/s.
• organized data in
rows and columns.
• contain fields (column)
and records (row).
• Data file – collection of
related records, stored
in any available storage
medium.
• also known as
rows/tuple.
• Contains data values
(name for a person, of a
product, an ID for
student).
• a collections of
related fields in a
database.
• also represent a data
attributes (describing an
entity).
• also known as a
columns
• contains a specific
category of data within
a record.
• single category of data
to be stored in
database.
• field name – uniquely
identifies each field.
• field size – defines the
maximum of characters
a field can contain.
6.2 Basic Concept of Database

28. 6.2 Basic Concept of Database

29. 6.2 Basic Concept of Database

30. 6.2 Basic Concept of Database
Field

31. Data
Dictionary
and
Data Type
6.2 Basic Concept of Database

32. 6.2 Basic Concept of Database
a *repository in database,
contains data about files in the
database and each field in those files
- Shelly & Vermaat, 2012

33. 6.2 Basic Concept of Database
a *repository in the form
of book,
contains visual data and
information about certain
topics – SeAm 2014

34. 6.2 Basic Concept of Database
List 3 - 4 examples of
data that can be extract
from student.
Imagine you are at the bus stop, suddenly
one female student that you’ve already
admire, walk to the bus stop and sit near
you. Ok man, what will you do ?

35. 6.2 Basic Concept of Database

36. 6.2 Basic Concept of Database
Data
Dictionary
has a field
name for DBA
to set a name
for specific
field
and for each
Field Name
DBA need to
set the type of
data (data
values) for the
field name
Descriptions
is a brief
information
about field
name

37. Data Type (in database) - specifies the
kind of data a field can contain and how
the field is used
6.2 Basic Concept of Database

38. DATA TYPE DESCRIPTIONS
Text store data that is not manipulated arithmetically
Number store numeric data, arithmetically can be manipulated (integer, decimal
– are available)
Currency special for numeric data that represents money (output with currency
signs, decimal points and commas.)
Yes/No store logical data, can only contains one from two-values (often appear
as checkboxes)
Date/Time store dates and times as values, can be sorted, added, or manipulated
(has several formats to choose from)
Memo store large block of text, can’t be arithmetically manipulated or
compared, but can be edited and displayed.
Hyperlink store hyperlinks to web pages, email addresses, or even a files.
Attachment contains images, documents, other types of files supported by the
DBMS program being used.
6.2 Basic Concept of Database

39. Primary Key
and
Foreign Key
6.2 Basic Concept of Database

40. 6.2 Basic Concept of Database

41. 6.2 Basic Concept of Database
Primary Key (in database) – a field,
uniquely identifies each record in a file.
• also known as a key field
• data (in the field) is unique.
• can be used to integrate data in database.

42. 6.2 Basic Concept of Database
Primary Key (PK) (in database) – should
follow the listed rules (in order to use it in
database)
• PK must contain a value – that is must be
declared (NOT NULL).
• PK value must be unique for each record (row).
• PK value must no change or become NULL
Benefits of using primary key (in
database) ;
• ensuring there’s no duplicate records in
database.
• preventing a NULL value being entered in
unique field.

43. 6.2 Basic Concept of Database
Foreign Key (in database) – a field in
relational table, that matches primary key
column of another table.
Explain:
1st
Table
2nd
Table
Relational /
Relationships
Line
Connecting 1st
and 2nd
Table

44. 6.2 Basic Concept of Database
Explain:
Foreign Key (in database) – a field in
relational table, that matches primary
key column of another table.
Remember !
• From the image, there are 2 tables. 1
Contact_Samsun.. And #2 is Hostel
Info. Both has been connected, thus
makes the table is a relational table.
• In Table #1, Contact_Samsun… ,
field Matric_Num is the PK, and there
are not Foreign Key in table 1.
• In Table #2, Hostel Info, field Room
Num is the PK (for that table), and
Matric_Num is the Foreign Key
(because it matches primary key form
another table ,Table #1).

45. 6.2 Basic Concept of Database
Conclusion:
Foreign Key (in database) – a field in
relational table, that matches primary key
column of another table.
Remember !
A foreign key (sometimes called a
referencing key) is ;
• key used to link two tables
together.
• taking primary key field
from one table and insert it
into the other table (where it
becomes a foreign key).

46. 6.2 Basic Concept of Database

47. 6.2 Basic Concept of Database

48. Primary Key & Foreign Key
Differences of primary key and foreign key;
- Primary can contain only unique value while foreign
key may contain duplicate value.
Importance of relationship between the Primary Key
and Foreign Key
- The primary key of one table becomes a foreign of
other table (by matching a foreign key with a primary
key, there is no need to enter data repeatedly)
- Making the process (query, form, reports) easier.
- Improves data performance by relating smaller tables
into meaningful databases.
6.2 Basic Concept of Database

49. Entity Relationship
6.2 Basic Concept of Database
- A data model that describes data and
information, implemented in a
relational database

50. Entity
• Something of importance to the
organization.
• Entities that the organization
wants to store data about typically
becomes a database table.
• Person, place, object, event or
concept in the user environment
about which the organization
wishes to maintain data.
• “thing” or object that contain
data.
• Represented by a rectangle in E-R
(entity-relationship) diagrams
6.2 Basic Concept of Database
Relationship
• An association between data that's
stored in different record types.
• Important because typically describes
an association between two or more
entities.
Cardinality
• Important aspect of the relationship
between record types.
• Number of associations that can exist
between two record types.
Attributes
• Characteristic of an entity.
• Property of an entity set

51. 6.2 Basic Concept of Database
TERM EXAMPLES
Entity (a noun) Product, Name, Book, Student,
Model, Lecturer, Staff
Relationship (a verb) order, register, claim, enroll, pay.
Cardinality (type of relationship) One-to-One (1:1)
One-to-Many (1:M)
Many-to-One (M:1)
Many-to-Many (M:N)
Attribute (entity’s property) product_serial_num,
product_price,
product_name

52. TERM DIAGRAM SYMBOL
Entity (a noun)
rectangle/square
Relationship (a verb)
a diamond shape
Cardinality (type of
relationship)
writing type of relationship on each relationship
lines
Attribute (entity’s
property) an oval shape
6.2 Basic Concept of Database

53. 6.2 Basic Concept of Database
Example of ER-Diagram
(Entity-Relationship Diagram)
Identify
• How many entity are
there in the
ER-diagram ?
• Which entity has the
most attributes ?
• List the attributes for
entity label Mark
• What is the
relationship
between Student
and Teacher ?

54. Types of Entity-relationships (Cardinality) in database
6.2 Basic Concept of Database
One-to-One (1:1) One-to-Many (1:M)
Many-to-One (M:1)
Many-to-Many (M:N)
a record in one record
type is related to one
record in another record
type

55. 6.2 Basic Concept of Database
Example 1
Example 2
2 entity, Teacher and Subject, the
relationship is supervise,
Cardinality is 1:1
2 entity, Student and Module, the
relationship is enroll,
Cardinality is 1:1

56. 6.2 Basic Concept of Database
Example 1
Example 2
2 entity, Football Team and Player,
the relationship is join,
Cardinality is 1:M
2 entity, Person and Location,
the relationship is birthplace,
Cardinality is M:1

57. 6.2 Basic Concept of Database
Example 1
Example 2 2 entity, Student and Course,
the relationship is register,
Cardinality is M:N

58. DATABASE
6.3 Database Object
Learning Outcome:
At the end of this topic,
students should be able to:
1. Explain the functions of database object
1

59. DATABASE
6.3 Database Object
What are Database objects?
- Several tools that allow
users and program to
retrieve and maintain
data in a database
2

60. DATABASE
6.3 Database Object
Definition :
● A collection of records that identify a
category of data, such as Students,
Lecturers or Academic
● A collection of computer data that is
organized, defined and stored as rows and column
● Functions :
○ To arrange data in rows and columns.
○ To describe the characteristics of data
3
T
A
B
L
E

61. DATABASE
6.3 Database Object
Example : An Employer Table
EmployerID EmployerNameEmployerAddress PhoneNumber
10122 Bean Town Tours 105 State Street, Boston, MA 617-451-1970
02109
10125 Boston Harbor 75 Atlantic Avenue, Boston, 617-235-1800
Excursions MA 02110
T
A
B
10126 BaySide Inn &
Country Club
10190 The Briar Rose
Inn
354 Oceanside Drive, 508-283-5775
Brewster, MA 02631
105 Queen Street, 902-626-1595
Charlottetown PE C1A 8R4
L
E10191 Windsor Alpine 14 Longmeadow Road, 603-266-9233
Tours Laconia, NH 03246
10198
4
Trudel Spa & 40 Rue Rivard, North Hatley 819-842-7783
Resort QC JOB 2C0

62. DATABASE
6.3 Database Object
Fields
EmployerID EmployerNameEmployerAddress PhoneNumber
T
A10122 Bean Town Tours 105 State Street, Boston, MA 617-451-1970
02109
10125 Boston Harbor
Excursions
10126 BaySide Inn &
Country Club
75 Atlantic Avenue, Boston, 617-235-1800
MA 02110
354 Oceanside Drive, 508-283-5775
Brewster, MA 02631
B
L10190 The Briar Rose
Inn
10191 Windsor Alpine
Tours
105 Queen Street,
Charlottetown PE C1A 8R4
14 Longmeadow Road,
Laconia, NH 03246
902-626-1595
E603-266-9233
10198 Trudel Spa & 40 Rue Rivard, North Hatley 819-842-7783
Resort QC JOB 2C0
Field - A single characteristic or attribute of a person, place, object,event or idea

63. DATABASE
6.3 Database Object
Relational Table
Relationships are links that associate a field in one table with a field in
another. An example in a school database with two tables:
T
A
Student
StudentID
StudentName
Address
Students Table
ClassID
IDStudent
ClassName
Math Class Table
B
L
EThe Students table holds students' names and addresses:
The Math Class table holds information about the students in math class:
Both tables have a Student ID field. By linking the Student ID fields,
you make sure that John in the Students. table is the same John listed in the
Math Class table:
Maths Class

64. DATABASE
6.3 Database Object
Relational Table
1 Parent have many children (twin student)
T
A
B
L
7
Supplier
SupplierID
SupplierName
Notel
ProductID
Supplier Table
Product
ProductID
ProductName
ProductCost
Product Table
E
1 Supplier supply many product

65. DATABASE
6.3 Database Object
Relational Table
8
T
A
B
L
E

66. DATABASE
6.3 Database Object
•
Refer to the Employer table below:
- How many fields are there?
T
AEmployerID EmployerName EmployerAddress PhoneNumber
10122 Bean Town Tours 105 State Street, Boston, MA 617-451-1970
02109 B10125 Boston Harbor
Excursions
10126 BaySide Inn &
Country Club
75 Atlantic Avenue, Boston,
MA 02110
354 Oceanside Drive,
Brewster, MA 02631
617-235-1800
L508-283-5775
10190 The Briar Rose
Inn
105 Queen Street, 902-626-1595
Charlottetown PE C1A 8R4
E
10191 Windsor Alpine 14 Longmeadow Road, 603-266-9233
Tours Laconia, NH 03246
9 10198 Trudel Spa &
Resort
40 Rue Rivard, North Hatley 819-842-7783
QC JOB 2C0

67. DATABASE
6.3 Database Object
10
T
A
B
L
E
Based on table above:
A. How many fields are there?
B. List all the fields.

68. DATABASE
6.3 Database Object
Eg: An Employer Table
EmployerID EmployerName EmployerAddress PhoneNumber
10122 Bean Town Tours 105 State Street, Boston, MA 617-451-1970
02109
T
A
10125
R
Boston Harbor 75 Atlantic Avenue, Boston, 617-235-1800
Excursions MA 02110 B
e
c
o
r
d
s
11
10126 BaySide Inn &
Country Club
10190 The Briar Rose
Inn
10191 Windsor Alpine
Tours
10198 Trudel Spa &
Resort
354 Oceanside Drive,
Brewster, MA 02631
105 Queen Street,
Charlottetown PE C1A 8R4
14 Longmeadow Road,
Laconia, NH 03246
40 Rue Rivard, North Hatley
QC JOB 2C0
508-283-5775
L902-626-1595
E603-266-9233
819-842-7783
Record - A set of related field values.

69. DATABASE
6.3
12
Database Object
How many records are shown in the Employer table below ?
EmployerID EmployerName EmployerAddress PhoneNumber
10122 Bean Town Tours 105 State Street, Boston, MA 617-451-1970
02109
10125 Boston Harbor 75 Atlantic Avenue, Boston, 617-235-1800
Excursions MA 02110
10126 BaySide Inn & 354 Oceanside Drive, 508-283-5775
Country Club Brewster, MA 02631
10190 The Briar Rose 105 Queen Street, 902-626-1595
Inn Charlottetown PE C1A 8R4
10191 Windsor Alpine 14 Longmeadow Road, 603-266-9233
Tours Laconia, NH 03246
10198 Trudel Spa & 40 Rue Rivard, North Hatley 819-842-7783
Resort QC JOB 2C0
T
A
B
L
E

70. DATABASE
6.3 Database Object
Description characteristic of data
•
● Table is also used to describe the
characteristics of data (data definition)
● During data definition, each field is assigned
with :
○ Name
○ Data type
○ Description
○ Properties•
T
A
B
L
E

71. DATABASE
6.3 Database Object
•
•
Definition:
● A window on the screen that provides areas
for entering or modifying data in a database
● Functions :
○ To retrieve and maintaining, viewing and
printing records in a database.
○ Present a friendlier interface than a table.
○ Allows viewing data one record at a time
F
O
R
M
15

72. DATABASE
6.3 Database Object
Horizon Travel & Tour
Employer Information System
Eg: A simple
Employer ID:
F
O
form to view
Employers
data
16
Name:
Address:
Phone Number:
First Record
R
M
Add Record
Delete RecordLast Record
PreviousNext Record

73. DATABASE
Eg: An e-form (electronic form) to register
as an online student
F
O
R
M
17

74. DATABASE
6.3
18
Database Object
Definition
- A request for specific data from the database (retrieve
data) such as display the Employer which located in
Boston.
A query is essentialy a question. For example, you
might ask, “Which records in the Student table live
in Ipoh?”the DBMS will look for the records in the
tables you have specified, find those that match
the criteria you have defined, and displays them in
a datasheet
Q
U
E
R
Y

75. DATABASE
6.3 Database Object
•
19
Functions:
- Specifies which records should be retrieved by
specifying criteria.
eg: Display the Employer which
located in Boston.
- Can specify the fields to be displayed.
eg: User only want to know the
Employer Name and Phone
Number, so query will select ONLY
the EmployerName and
PhoneNumber fields to be displayed.
Q
U
E
R
Y

76. DATABASE
6.3 Database Object
20
Function:
- A query is a way to get specific information from
the database.
- A means of asking questions (querying) of your
data
- Can look across a number of Tables and other
Queries
- Can perform calculations and Combine fields
Q
U
E
R
Y

77. DATABASE
•
•
•
➢ User request for Employer which located in Boston.
What will be displayed in the Query?
EmployerID EmployerName EmployerAddress PhoneNumber
Q
U
10122 Bean Town Tours 105 State Street, Boston, MA
02109
617-451-1970
E10125 Boston Harbor 75 Atlantic Avenue, Boston, 617-235-1800
Excursions MA 02110
10126 BaySide Inn &
Country Club
10190 The Briar Rose
Inn
354 Oceanside Drive, 508-283-5775
Brewster, MA 02631
105 Queen Street, 902-626-1595
Charlottetown PE C1A 8R4
R
Y10191 Windsor Alpine 14 Longmeadow Road, 603-266-9233
Tours Laconia, NH 03246
10198
21
Trudel Spa & 40 Rue Rivard, North Hatley 819-842-7783
Resort QC JOB 2C0
Database Object6.3

78. DATABASE
Answer:
EmployerID EmployerName EmployerAddress PhoneNumber
Q
U
10122 Bean Town Tours
10125 Boston Harbor
Excursions
105 State Street, Boston, MA 617-451-1970
02109
75 Atlantic Avenue, Boston, 617-235-1800
MA 02110
E
R
Y
22
Query for Boston Employer
Database Object6.3

79. DATABASE
•
•
•
➢ User request for Employer’s Name and
Phone Number.
What will be displayed in the Query?
Q
UEmployerID EmployerName EmployerAddress PhoneNumber
10122 Bean Town Tours 105 State Street, Boston, MA 617-451-1970
02109
E10125 Boston Harbor 75 Atlantic Avenue, Boston, 617-235-1800
Excursions MA 02110
10126 BaySide Inn &
Country Club
10190 The Briar Rose
Inn
354 Oceanside Drive, 508-283-5775
Brewster, MA 02631
105 Queen Street, 902-626-1595
Charlottetown PE C1A 8R4
R
Y10191 Windsor Alpine 14 Longmeadow Road, 603-266-9233
Tours Laconia, NH 03246
10198
23
Trudel Spa & 40 Rue Rivard, North Hatley 819-842-7783
Resort QC JOB 2C0

80. DATABASE
Answer : Query for Employer’s name and phone number Q
EmployerName
Bean Town Tours
Boston Harbor Excursions
BaySide Inn & Country
Club
The Briar Rose Inn
PhoneNumber
617-451-1970
617-235-1800
508-283-5775
902-626-1595
U
E
R
Y
Windsor Alpine Tours 603-266-9233
24 Trudel Spa & Resort 819-842-7783
Database Object6.3

81. DATABASE
6.3 Database Object
R•
•
25
Definition:
A report generator allow users to design a
report, retrieve data into the report design
and then display the information from tables
in nicely formatted, easily accessible ways on
computer screen or print the report on paper.
E
P
O
R
T

82. DATABASE
6.3 Database Object
Functions:
- Provides presentation-quality output
- May be based on either a table or a query
- Allows you to group and summarize data
- Can perform calculations and combine fields
- Cannot edit data
- Can make labels
- To design a report on the screen
- To retrieve data into the report design
- To display or print the data in the database
26
R
E
P
O
R
T

83. DATABASE
6.3 Database Object
RSources to create a Report
27
- A report can be formatted according to any
specifications.
- The data in the report can consist of data from a
single table or multiple tables.
- The report can be based on a table or it can be
based on a query.
- If the report is based on a query, it will contain the
same fields that were selected for the query
E
P
O
R
T

84. DATABASE
Example:
RREPORT : Employer List
ID: 10122
Name: Bean Town Tours
Address: 105 State Street, Boston, MA 02109
Phone Number: 617-451-1970
ID: 10125
Name: Boston Harbor Excursions
Address: 75 Atlantic Avenue, Boston, MA 02110
Phone Number: 617-235-1800
ID: 10126
Name: BaySide Inn & Country Club
Address: 354 Oceanside Drive, Brewster, MA 02631
Phone Number: 508-283-5775
28
E
P
O
R
T
A Report based on Employer table

85. DATABASE
R
29
REPORT : Employer List
ID: 10190
Name: The Briar Rose Inn
Address: 105 Queen Street, Charlottetown PE C1A 8R4
Phone Number: 902-626-1595
ID: 10191
Name: Windsor Alpine Tours
Address: 14 Longmeadow Road, Laconia, NH 03246
Phone Number: 603-266-9233
ID: 10198
Name: Trudel Spa & Resort
Address: 40 Rue Rivard, North Hatley QC JOB 2C0
Phone Number: 819-842-7783
E
P
O
R
T
Example: A Report based on Employer Table

86. DATABASE
Example:
A Report based on Query for Employers which located in Boston.
R
30
REPORT : Employer List based in Boston
ID: 10122
Name: Bean Town Tours
Address: 105 State Street, Boston, MA 02109
Phone Number: 617-451-1970
ID: 10125
Name: Boston Harbor Excursions
Address: 75 Atlantic Avenue, Boston, MA 02110
Phone Number: 617-235-1800
E
P
O
R
T

87. DATABASE
Example:
A Report based on Query for Employer’s name and phone number
Name: Bean Town Tours
Phone Number: 617-451-1970
Name: Boston Harbor Excursions
Phone Number: 617-235-1800
Name: BaySide Inn & Country Club
Phone Number: 508-283-5775
R
E
P
O
R
T
31
Employer’s name and phone number

88. DATABASE
6.3 Database Object S
Functions of Database Object
To design a
report on the
screen
U
M
M
A
R
Y33
To arrange
data in rows
and columns
To describe the
characteristics of
data
To retrieve and
maintaining,
viewing and
printing recors
in adatabase
data in rows
and columns
Allows viewing
one record at a
time
Specify which
record should
be retrieve by
specifying
criteria
Can specify the
fields to be
displayed
To display or
print the data in
the database

89. Tips !!!
Database

93. DATABASE
REFERENCES
Petersen, J. V. (2002). Absolute Beginner's Guide to
Databases. Indianapolis, IN: Que.
Shelly, G.B., & Vermaat, M. (2012). Discovering computers:
Your interactive guide to the digital world. Boston, MA:
Course Technology/ Cengage Learning.
Vaughan, T. (2011). Multimedia: Making it work. New York:
McGraw-Hill.
34