Transcript Day 14:MICROSOFT access – CHAPTER 1

DAY 14:
MICROSOFT ACCESS – CHAPTER 1
Madhuri Siddula
[email protected]
February 25, 2015
TOPICS
• File processing system
• Database fundamentals
• Microsoft access
MANUAL FILE SYSTEM
USER
FILE KEEPER
FILE CABINET
FILE PROCESSING SYSTEM
 Information stored as group of records in
separate files
 File systems consisted of a few data files
and many application programs
 Each file called a soft file
 Flat file contained the processed
information for one specific function
 Use of programming languages to write
applications
FILE PROCESSING SYSTEMS
STRUCTURE
Customer file
User 1
Rental file
User 2
Customer
Processing
Application
Rental
Processing
Application
Customer file
Rental file
LIMITATION OF FILE PROCESSING
SYSTEM
i. Separate and isolated data
ii. Data redundancy
iii. Data independence for file formats and access
techniques
iv. Difficult in representing data from user’s view
v. Data inflexibility
Due to this limitations, the concept of
Data base management system (DBMS) was born
• A database management system (DBMS)
is a software system that provides the
tools to create, maintain and use a
database.
• Some of the databases:
– MS Access
– Oracle
– SQL SERVER
– MY SQL
DBMS STRUCTURE
USER 1
CPA
USER 2
RPA
USER 3
OPA
DBMS
DATABASE
DATABASE FUNDAMENTALS
• Database is a collection of data, organized
as meaningful information.
• It can be accessed, managed, stored,
queried, sorted and reported.
• Examples
– Amazon
– Telephone directory
– ebay
– Cs101 student files
DATABASE TERMINOLOGIES
 Data
This is the fact, or about specific entity(person,place or
thing)
 Information
Is the data that have been processed and is useful to the
user
 Field
Is a single item of information or data in entity
e.g. employee name
 Record
Is a group of fields about an entity,example
Employee’s particulars
FIELD
• The smallest data element contained in
a table
• Field types:
– Text
– Numeric
– Date
• Field examples:
–
–
–
–
Birthdates
Last Name
Age
Social Security #
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RECORD
• Record – a complete set of all of the data
elements (fields) about one person, place,
event, or concept
• Example record in a employee DB:
– Name, Number, E-mail, Class, Section
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TABLE
• The foundation of every database
• Contains a primary key (unique field)
• Is a collection of related records
– Example Table:
• All Student records in my CS 101 sections would be
added to my Section Roster Table during registration
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KEY
• A field that contains a unique identifier
• Foreign key
– A field in one table, that is a primary key in
another
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MICROSOFT ACCESS
ACCESS OBJECTS
• Tables, Forms, Queries, Reports, Macros
Modules
THINGS TO DO
• Open an access file and work with content
security.
• Examining the access interface, views and
organize information
THINGS TO DO
• Edit and Delete a record
• Save as, compact and repair and backup
the database.
SORT TABLE
FILTER
OTHER OPTIONS
•
•
•
•
Toggle filter
Filter by form
Load from query
Save as query