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database
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database
A data base is a place for infomatipn to be stored and is easy to be accessed to keep it easy to access you should have it organised
your age
your allergies
your homephone number
where you live
parent names
date of birth
where you were born
past behavior
primary shcool
attendance
past test scores
address
full name
photo of you
an example of a database is a search engine and school regester and police data base and library data base
Use the Database Categorization dialogue box to create derived categorical variables (as database variables cannot be used directly in table definitions, filters, and tabulation)
Advantages Reduced data redundancy Reduced updating errors and increased consistency Greater data integrity and independence from applications programs Improved data access to users through use of host and query languages Improved data security Reduced data entry, storage, and retrieval costs Facilitated development of new applications program
Disadvantages Database systems are complex, difficult, and time-consuming to design Substantial hardware and software start-up costs Damage to database affects virtually all applications programs Extensive conversion costs in moving form a file-based system to a database system Initial training required for all programmers and users
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- Mind Map on database, created by Russell Smurthwaite on 04/11/2015.
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- Russell Smurthwaite
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