What
is a Database?
A collection of related information that helps
you organize records
For what is a database program used?
A database program, like Microsoft Access, can be used for many
things. Primarily, it is used to keep track of or manage information about:
- People (customers, employees or
friends)
- Items (products, CD or video
collection)
- Events (sales transaction)
Other things a database program can be used for include: Storing
information like a file cabinet, finding and retrieving data of interests, as
well as performing searches for specific parts of all the information,
analyzing data and helping you make quick, accurate and informed decisions
based on the information, and also database programs can neatly present
information in professionally designed reports.
Common Uses of Databases
In Schools -
- Student Records
- Staff Employment Records
- Recipes
- Music Collection
- Addresses
Business Use -
- Business Mailing Lists
- Customer Orders
- Inventories
- Equipment
- Property
- Payroll
Advantages of Computerized Databases
- quicker to find things
- neater
- more useful
- can sort information
(alphabetize)
- can group information (all
friends who live in CA)
- generates reports
- analyzes data (easily see
trends or relationships to make informed decisions)
Parts of a Database
Tables
A collection of data about a specific topic, organized into columns (called
fields) and rows (called records). In table datasheet view, you can add,
edit, or view the data in a table. You can also check the spelling and
print your table's data, filter or sort records, change the datasheet's
appearance, or change the table's structure by adding or deleting columns.
Fields
Categories of information
Each field is made up of:
•field name - titles you give to each category of
information
•field entries -contents of the database, text, numbers or
formulas
Record
All the information about one person or item, for example
•1 form filled out in a Form
•1 row in a table
Forms
Forms provide a quick way to view, enter and change information in a
database. Forms usually display boxes that show one record at a time.
Filters or Queries
Filters or Queries allow you to find items of interest from all the information
in a database. A filter allows you to show the records that match the
criteria you'd like to retrieve. A query allows you to find data from
one or more table using criteria you specify, and then displays it in the order
you want. A query also allows you to save the data as an object.
Report
Reports are professional-looking documents that summarize the data in a
database.
Datasheet View
Displays all the records
in a table. You can enter, edit and review records in this view.
Design View
This view allows you to change the structure of a table. You can change
the settings in this view to specify the kind of information you can enter into
a table.
There are many ways to work with the data in a table's datasheet.
- You can sort the records of
your datasheet by the data in one or more fields.
- Sort
in ascending (A-Z or 0-9) order (alphabetically or
numerically)
- Sort
in descending (Z-A or 9-0) order (alphabetically or
numerically)
- You can limit the records you
see in your datasheet by filtering in these ways:
-
Filter by Selection
-
Filter by form
- You can "Find" or
"Find and Replace" values or data in a table's datasheet.
- You can add or delete
records.
- You can add, delete or rename
fields.