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Relational Databases (MS Access)

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Presentation on theme: "Relational Databases (MS Access)"— Presentation transcript:

1 Relational Databases (MS Access)

2 What is database? Database: A collection of data and information describing items of interest to an organization. Database Management System (DBMS): A program that makes it possible for users to manage the data in a database in order to increase accessibility and productivity.

3 What is a relational database?
Relational Database: A database in which the data are structured in a table format consisting of rows and columns. Relation/File: The table in a database that describes an entity. Tuples: The rows of a relation. Also called records. Fields: The column of a relation. Also called attributes.

4 What is a relational database?

5 What is a relational database?

6 What is a relational database?
The power of a relational database is twofold: 1) information is managed in separate tables to make maintenance easier, 2) data can be combined by relating different tables.

7 Microsoft Access A Microsoft Access database is made up of several components including: Tables Forms Queries Reports

8 The Main Access Window When you open Microsoft Access, many items you see are standard in most Microsoft software programs like Word, Excel, and PowerPoint.

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10 What is a Table? The columns and rows in an Access table resemble an Excel spreadsheet.

11 What is a Query? A query lets you find and retrieve information from one or more tables based on a set of search conditions you define. Queries can be created using a wizard or developed from scratch in the Query Design view.

12 What is a Query?

13 What is a Form? An online form can be created to view, input or change information in one or more tables. Forms can retrieve data from one or more tables, and display the output on the screen.

14 What is a Form?

15 What is a Report? A report is an effective way to analyze and present data in a printed format using a specific layout. You have control over the size and appearance of information printed on the report, similar to formatting you perform in a Microsoft Word document.

16 What is a Report?

17 Datasheet basics

18 Field Properties Table consists of the fields: Last Name, First Name, Phone, Address, City, State, and Zip. Each field has unique properties. Some contain characters. Others contain numbers. These Field Properties are defined when the table is created.

19 Field Properties

20 Primary Keys Every table in Microsoft Access must have at least one field that uniquely identifies each record in the table. This field is known as a primary key. This primary key essentially opens the door to the table and allows you to retrieve information from the table. The primary key is the mechanism by which you relate different tables and combine information for viewing (query) or printing (report).

21 Primary Keys

22 Creating a New Database
Choose File > New from the menu bar.

23 Creating a New Database

24 Creating a New Database

25 Creating a New Tables

26 Creating a New Tables

27 Creating a New Tables

28 Creating a New Tables

29 Creating a New Tables

30 Creating a New Tables

31 Editing and Deleting Table Records


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