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Database provides a systematic and organized way of storing, managing and retrieving from collection of logically related information.
Secondly the information has to be persistent, that means even after the application is closed the information should be persisted.
Finally it should provide an independent way of accessing data and should not be dependent on the application to access the information.
Ok let me spend a few sentence more on explaining the third aspect. Below is a simple figure of a text file which has personal detail information. The first column of the information is Name, second address and finally the phone number. This is a simple text file which was designed by a programmer for a specific application.
Figure : Non-Uniform Text File
It works fine in the boundary of the application. Now some years down the line a third party application has to be integrated with this file , so in order the third party application integrates properly it has the following options :-
=> Use interface of the original application.
=> Understand the complete detail of how the text file is organized, example the first column is Name, then address and finally phone number. After analyzing write a code which can read the file, parse it etc ....Hmm lot of work right.
That's what the main difference between a simple file and database; database has independent way (SQL) of accessing information while simple files do not (That answers my twisted question defined above). File meets the storing, managing and retrieving part of a database but not the independent way of accessing data.
Secondly the information has to be persistent, that means even after the application is closed the information should be persisted.
Finally it should provide an independent way of accessing data and should not be dependent on the application to access the information.
Ok let me spend a few sentence more on explaining the third aspect. Below is a simple figure of a text file which has personal detail information. The first column of the information is Name, second address and finally the phone number. This is a simple text file which was designed by a programmer for a specific application.
It works fine in the boundary of the application. Now some years down the line a third party application has to be integrated with this file , so in order the third party application integrates properly it has the following options :-
=> Use interface of the original application.
=> Understand the complete detail of how the text file is organized, example the first column is Name, then address and finally phone number. After analyzing write a code which can read the file, parse it etc ....Hmm lot of work right.
That's what the main difference between a simple file and database; database has independent way (SQL) of accessing information while simple files do not (That answers my twisted question defined above). File meets the storing, managing and retrieving part of a database but not the independent way of accessing data.
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