Access Intro 1
Transcript of Access Intro 1
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Microsoft Access
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Database
• Collection of information concerninga certain business application
• Helps you organize the relatedinformation in a logical fashion foreasy access & retrieval
• An automated version of the filing &
retrieval functions of a paperfiling system
• Tables serve as the primary data
repository in an Access database
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Database
• Queries, forms and reports provideaccess to the data, enabling user toadd or extract data and presenting
the data in useful ways• Developers may use macros or Visual
basic for Applications(VBA) code toforms & reports to make theirapplications easier to use
• Overall container for the data &associated objects – includes
objects including queries, forms,
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Tables
• Similar to a folder in a manual filingsystem
• Each table contains information
about a single entity (person,product)
• Data organized into rows & columns
–record & fields• Thinking of objects managed by your
applications in abstract terms
• Can also view the the table in aspreadsheet-like form – datasheet
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Working with multipletables
• Simplifies data entry & reporting bydecreasing the input of redundantdata
• Separating data into multiple tableswithin a database makes thesystem easier to maintain because
all records of a given type arewithin the same table
• This process is known as
normalization
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Access Database Objects& Views
• Table – holds the actual data
• Query – searches for, sorts & retrievesdata
• Form – lets you enter & display data incustomized format
• Report – displays & prints formatted
data• Pages – publishes data into a corporate
intranet
•
Macro – automates tasks without
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Queries
• Selects & defines a group of recordsthat fulfill a condition
• Forms & reports are based on
queries that pre-filter data beforeit is displayed
• Eg- show all customers in alphabeticalorder, who live in Mumbai & bought
something over the past 6 months• When you enter instructions into the
QBE design Window, the querytranslates instructions into SQL &retrieves desired data
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Data Entry & DisplayForms
• Helps users get information into adatabase table quickly, easily &accurately
• Provides a more structured view of the data than what a datasheetprovides
• From this structured view, databaserecords can be viewed, added,changed or deleted
• Forms can also check the validity
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