sequential file organization
index file orgaization
diect file orgaization
File processing system is inconsistent and disintegrared.It is difficult to access and may be present on different platforms which would not allow to integrate data
sequence file system index file system main file system sequence index file system
Enforcing Security Constraints in file processing system is very difficult as the application programs are added to the system in an ad-hoc manner.
The traditional file processing system is the computerized manual filing system. It is when a computer system stores permanent records.
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Master file. This file contains the permanent information for an organization or system, and it is updated by processing transactions that modify data within the system.
Prior to the use of DBMS Traditional file processing system were in use . These were the system that are used as database that time. These system do not supports the query.
File processing system is a process of storing and organizing information through a network. This is a system that is commonly used in business to keep track and to access files instantly.
Prior to the use of DBMS Traditional file processing system were in use . These were the system that are used as database that time. These system do not supports the query.
Excessive Program Maintenance 80% of information system budget
In file processing system a permanent system file is created for every new object. Application softwares are used to manipulate these files. SO characteristics (Some of them became its drawbacks) of file processing system are:- 1)Data redundancy and inconsistency 2)Difficulty in accessing data 3)Data isolation ie. data is in different formats and files. In database system these issues where addressed, by data abstraction. In DBMS, data is stored using 3 levels of abstraction 1)Physical Level : How data is stored 2)Conceptual level : What data is stored, relationship between data 3)View Level : What is visible to different users.
swap file