Monday, February 21, 2011

Database Definitions

1.
FIELD: A space allocated for a particular item of information.

RECORD: In database systems, it is a complete set of information.

FILE: A collection of data, or information that has a name, which is called a filename.

QUERY: A request for information froma database.

DATABASE: A collection of information organised in such a way that a computer program can quickly select desired pieces of data.

REPORT: A formatted and organised presentation of data.

DBMS: Database Manage System- organized around groups of record that share a common field value.

DATA DICTIONARY: A file that defines the basic organization of a database. It contains a list of all files and number of records.

DATA TYPE: Classification of a particular type of information.

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3.  Database:
  • Google
  • Yahoo
  • Vodafone, Optus etc...
  • Bing
  • Hotmail etc

Monday, February 7, 2011

USING AN ELECTRONIC DATABASE

WHAT IS A DATABASE?
An organized body of related information.

EXAMPLES OF DATABASES
-Google
-Yahoo
- Search Engine: Bing

YELLOWPAGES
1. Computer Shop in Katoomba:  Phone number: (02) 4782 2228
2. Closest Flower Shop is on 91a Fowler Rd, Merrylands 2160.

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The Yellow/White Pages is a database because it has a bunch of organised information that would make it easier for the user to use. Yellow/White pages are also considered a database because you can easily search anything you would like to find and they would find it for you.
I find this internet type database of yellowpages easier because you just have to type what youre looking for and where they will get the answer for you. But the paper based database would take time as it is based on alphabetical order and the shop you are looking for.