electronic database management system (dbms) microsoft ... · •part of the microsoft office suite...
TRANSCRIPT
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Electronic Database Management System (DBMS) – Microsoft
Access 2010
Prepared by: Teo Siew Faculty of Business, Finance, and Hospitality
Copyright© 2017 MAHSA UNIVERSITY
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Content
• What is Microsoft Access
• Why use Access
• Limitations
• Basic background information
• Conclusion
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MS Access
• Microsoft Program
• Part of the Microsoft Office suite
• Used to create relational database management system (RDMS) • consists of multiple tables, each storing specific information
• relates information from one table to another
• One-to-many relationships are the power behind a relational database
• Query the database to find information
• Enter information into forms
• Display results in reports
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Why use RDMS
• Facilitate information sharing • data can be queried from multiple tables
joined and displayed in a subset of records
• Reduce data redundancy • the same data is not stored over and over again
• Keep data accurate • a change in data is made in one table but appears updated in all queries and
reports
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Why use MS Access
• Easy to use • GUI, Looks good
• Stand-alone • Do not require any other program to run or use
• Lots of support • Help File, Message boards
• Relatively cheap • Comes with MS Office Suite
• Integration • Can be integrated with other MS Office applications
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Limitations
• It’s a Microsoft product • Bugs galore
• Overly user- friendly • Tried too hard to predict what you what to do
• Not suited for large databases • Takes up lots of computer resources
• Expensive • Must buy from Microsoft. Not open source
• Complicated to use for connectivity to other types of databases
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Basics of Access • The key window in Access is known as
the ‘database window’.
• Seven objects can be launched from this window: • Tables • Queries • Forms • Reports • Pages • Macros • Modules
• These objects, in turn, become their own windows.
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Basics of Access
• The smallest piece of information in a database is called a field • customer name
• A group of related fields is called a record • customer name, address, phone number
• A table is a collection of records about a particular subject • customers
• A relational database consists of a set of related tables • Customers and Orders and Products
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Basics of Access • Primary Key
• A field used to uniquely identify each record
• Every table in a database must have a primary key defined
• Composite Key • More than one field used in combination to uniquely identify each record
• Foreign Key • A field (in one table) that is related to a primary key in another table within the
same database.
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Tables
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Views
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Table (Fields – design view)
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Table (Fields – datasheet view)
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Relationships
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Relationship Chart
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Basics of Access
• Queries • A subset of table information
• Similar to filter or find operation within table • searches for records according to specified criteria and displays these records
• Also like a sort operation • can change the order of records
• Differs from filter and sort in that a query can be run against several tables
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Query
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Basics of Access • Forms
• Used to easily view, enter, and change data directly in a table
• retrieves the data from one or more tables, and displays it on the screen
• also display pictures and other objects
• can contain a button that prints, opens other objects, or otherwise automates tasks
• Reports • Used to analyze your data or present it a certain way
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Form
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Form
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Report
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Report
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Conclusion • Explained MS access
• Relational Database Management System
• Basics you need to know • Keys, Tables, Queries, Forms, Reports
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Questions