Transcript Designing a Relational Database

Designing a Relational
Database
13.4
Page 13-4
A database should be created
based on a design
 Three steps
 Determine what information should be stored
 Know the purpose of your database
 Divide information into named tables
 Grouping the related information
 Define fields and determine the primary key
 Field names (p 13-2)
 Primary key given to fields that cannot be
duplicated (p 13-4)
Creating a new relational database
 You MUST name the database
BEFORE you save it.
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Start
Programs, Microsoft Office Access
Create new file, blank database
Navigate to YOUR folder
Give the database a name
Create
Database Window (13-6)
Parts of the screen
 Toolbar – contains buttons that represent
different actions
 Database Window – used to display and
create objects for the open database
 Buttons – used to display database objects
and icons
 Window toolbar – buttons that represent
different actions
See picture 13-6
Creating tables
 Click tables
 Double-Click create
table in design
view
Create tables
Type in a field name
Select the field type
Type a description IF NECESSARY
Field Properties
Once you have entered a field
name, field properties options
are available
Primary Key
 To complete a table, a primary key
must be designated.
 Put your insertion point inside the
field name
 Click the primary key button on the
toolbar
 That field is now the primary key
Save and Close the table
 Click the Save button on the toolbar
 Name the table
 Close the table (little X)
Table is now ready for
you to open and input
data
Assignment
 Complete Practice 1 on page 13-4
 Yes, you must write down and plan the
database
 Sample database planning sheets are on
the center tables
 Complete Practice 2 on page 13-8-11
 Read each step carefully
 Save with correct names