The file based system in dbms, Database Management System

The File Based System

File based systems are an early attempt to computerise the manual filing system. For example, a manual file can be set up to hold all the correspondence relating to an exacting matter as a project, product, task, employee or client. In an organisation there could be a lot of such files which may be stored and labelled. The same could be done at homes where file relating to tax payments, bank statements, receipts, etc., could be maintained.

What do we do to search information from these files? For finding of information, the entries could be searched in sequence. Alternatively, an indexing system could be used to situate the information.

The manual filing system works well when the amount of items to be stored is small. It even works fairly well when the number of items stored is fairly large and they are only needed to be retrieved and stored. Though, a manual file system crashes when processing of information and cross-referencing in the files is carried out. For instance, in a university a number of students are enrolled who have the options of doing many courses. The university may have divide files for the personal details of students, fees paid by students, the number and details of the courses taught, the number and details of each faculty member in many departments. Consider the effort to answer the following queries.

  • Annual fees given by the students of Computer science department.
  • Number of students requiring transport facility from a specific area.
  • This year's turnover of students as compared to last year.
  • Number of students opting for dissimilar courses from dissimilar departments.

The solutions to all the questions above would be time consuming in the file based system and cumbersome.

 

Posted Date: 3/5/2013 4:27:49 AM | Location : United States







Related Discussions:- The file based system in dbms, Assignment Help, Ask Question on The file based system in dbms, Get Answer, Expert's Help, The file based system in dbms Discussions

Write discussion on The file based system in dbms
Your posts are moderated
Related Questions
Explain the shadow paging recovery technique.  Ans: Shadow paging is a method used to acquire atomic and durable transactions, and provides the capability to manipulate pages i

Cardinality of Relationship One-to-One Only one entity of the first set is linked to only one entity of the second set. E.g. A teacher teaches a student. Only one teacher

In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.

Explain forms based and graphical interface? Forms based and graphical interface: graphical user interface (GUI) is a kind of user interface which permits people to interact

explain concept of decomposition?

How does Oracle act as ODBC and give examples of front end uses with ODBC? ODBC achieve portability at the level of the executable by introducing an extra level of indirection.

Function requirement as given: 1> manage fans and likes and followings those information from facebook. twitter. google+ and linkedin etc 2> Organize the clients from email m

NEED ER DIAGRAM WITH MINIMUM ENTITY AND RELATIONSHIP of Hospital Management System

Saving Derived Attributes to Avoid Re-computation   As discussed, "redundancy means duplication of exact data". But, if multiple copies of same data are present in the system,

Atomicity: It describes a transaction to be a one unit of processing. We can also say either a transaction will be finished completely or not at all. In the transaction example 1