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DEVELOP DATABASEUSING MS ACCESS 2007
Diploma in Industrial TechnologyManagement
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Describe the concept of database and its functions in
organization
Describe the difference and benefits of using database
approach compare to traditional file environment Apply data analysis methods, entity relationship diagram
(ERD) and normalization process
Develop database using MsAccess
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Database is agroup of related
files
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Data consists of facts,text, graphics and
figure that can berecorded and that
have implicit
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Information is thedata that have been
processed and beingmade to be useful for
users or decision-
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Systems tended togrow independently
without a company-wide plan
[segmentized filing
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Each dept has theirown application with itsown application
managed their own fileswith their own
computer
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Some problems with
Traditional FileEnvironment;
Data Redundancyand Inconsistency
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Data Redundancy
Data duplication in multipledata files so that the same
data are stored in more
than one place or locationWaste storage resources
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Data Inconsistency
Confusing due to differentcoding systems to
represent values for an
attribute
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For business use
For personal use To keep track of things
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Database Management
Systems Collection of program that
enable user to create and
maintain a database and
provide control access to
the database
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Software that permits an
organization to centralize
data, manage them efficiently
by centralizing the data and
controlling redundant dataEg. Ms Access, ORACLE,
FoxPro etc
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Text
Numeric Boolean
Currency Date and Time
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It is database program thatenables end-users to
organize and manipulatedata, perform queries anddevelop reports
There are seven databaseobjects; Table, Form,Queries, Report, Pages,
Macro and Modules
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Tables
Stores information aboutspecific topic
Consists of fields and records
More than one tables in asingle database
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Forms
Displays information fromdatabase in attractive way
Prepares a fast and efficient
way to view, enter or edit datain the database
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Queries
Allow end-users to searchinformation from the database
according to the requirements
specified in advance
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Reports
Document that summarizedata in the database
Calculation function can be
included into the reportparticularly for analyzing data
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Start button > Ms Access >
Choose Blank Database >Determine database location
(click folder on left side) >
enter File Name > clickCreate button
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Field Name identifies theinformation within a field
Data Type determine the type ofinformation users can enter
Field Properties characteristicsthat provides additional controlover the information users canenter in a field
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Click Create Text > Click Table icon
> Table 1 displays (on right side) >
click views > choose Design view >Save Table (give name) > click ok
Enter Field name
Choose Data type
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Establish Relationship
Ensure Primary and Foreign Key
already established
Click database tools > click
Relationship icon > (show tabledisplays) > choose table(s) > click
Add > (Table(s) appear in
relationship)
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Establish Relationship (continued)
Drag Primary Key to Foreign Key >
(noted relationship type appears at
bottom) > Click Enforce Referential
Integrity > click Cascade update
related fields > click Cascade delete
related records
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Relational Keys
One or more attributes that can be identified arow (record)
Attribute(s) that can relates one entity with
another entity in a relationship
Relational key enable us to link the tablestogether in a database for easier data access
storage
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Candidate Key an attribute or group ofattributes that identify a unique row in a
relation. One of the candidate keys ischosen to be the primary key
Primary Key Any of the candidates thatare selected to be the key or an attributethat uniquely identifies each row in arelational table
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Foreign Key An attribute in one tablewhose values must match the primary
key in another table or whose valuemust not be null. Attribute that acts asprimary key in a related table
Composite Key A primary key thatconsists of more that one attribute,especially inmany to many (M:N)
relationship
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Characters to create an input mask : 0 Number 0 to 9, required
9
Number or space, optional # Number or space, optional L Letters A to Z, required ? Letters A to Z, optional a
Letter or number, optional
& Character or space, required
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Characters to create an input mask :
c Character or space, optional
-/ decimal point and thousands, date and time
separator < Convert the character to lowercase
> - Convert the character to uppercase
! Display character from right to left
\
Display the following input mask character: \& willdisplay &
Password Display an asterisk for each characteryou type
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Create Form using form wizards
Click Create Tab > click more form
choose form wizards > selecttables/queries > select all fields >click next > choose justified > click
next > choose style > click next >
insert form name > click finish
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Create Report using form wizards
Click Create Tab > click more form
choose form wizards > selecttables/queries > select all fields >click next > choose layout justified
> orientation portrait > choose
style > insert form name > clickfinish
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Click create tab > choose Query
Design > select table > Drag
selected fields into column > clickrun button > query result
displayed
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