database

DATABASE

How do you organize data?

What is DATABASE?

• A database is a tool for collecting and organizing information. Databases can store information about people, products, orders, or anything else.

• A database is a collection of table. Instead of placing related data in a single table, database allows you to separate them into different tables that may be merged together whenever needed.

Microsoft Office Access, previously known as Microsoft Access, is a database management system from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools.

The parts of an Access database• Tables• Forms• Reports• Queries• Macros• Modules

What is the use of MS ACCESS?

Using Access, you can:• Add new data to a database, such

as a new item in an inventory• Edit existing data in the database,

such as changing the current location of an item• Delete information, perhaps if an

item is sold or discarded

• Organize and view the data in different ways• Share the data with others via

reports, e-mail messages, an intranet , or the Internet

Figure 1: A student database consisting of different related tables

Record • It is a collection of related data. It is

very important in terms of planning and decision-making for they give information that is required for a particular situation.• A record consists of related pieces of

data called attributes or data fields

Table• A collection of records. It is made

up of rows and columns. Each row in the table corresponds to a record and each column represents a data field.

A table with three records

Primary Key• A Primary key is a unique data that

is identifies each record in a table. Just like an ID number in your identification or membership card, each record becomes unique.

Foreign Key• foreign key is a relationship or link

between two tables which ensures that the data stored in a database is consistent. • The foreign key link is set up by matching

columns in one table (the child) to the primary key columns in another table (the parent).

The Microsoft Access Application

Window

Title BarMenu Bar

Standard toolbar

Task Pane

• Title Bar - every program or application of Microsoft windows is run inside a window. Title bar contains the name of the window that is used for identification when switching from one window to another.

• Menu Bar – contains commands that can be used in the application. The commands are grouped by category and are accessed by clicking it.

• Standard toolbar – it contains most common task that you would normally access using the menu bar.• Task Pane- it contains shortcuts to

tasks that you normally access using the menu bar. It also acts as an assistant in finding the answers to your questions.

1. It is very important in terms of planning and decision-making for it give information that is required for a particular situation.

2. A collection of records that is made up of rows and columns.

3. A tool for collecting and organizing information.

QUIZ #2

4. A relationship or link between two tables which ensures that the data stored in a database is consistent.

5. A unique data that is identifies each record in a table.

6. A database management system from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical user interface and software-development tools.

7. It contains most common task that you would normally access using the menu bar.

8. It contains the name of the window that is used for identification when switching from one window to another.

9. It acts as an assistant in finding the answers to your questions.

10. It contains commands that can be used in the application. The commands are grouped by category and are accessed by clicking it.