File based approach can be attributed to two factors:
1. the definition of the data is embedded in the application programs, rather than being stored separately and independently.
2. there is no control over the access and manipulation of data beyond that imposed by the application programs.
To become more effective, a new approach was required. What emerged were the database and the DBMS (Database management system).
Active file: An active file is where you use a file quite frequently. Inactive file: A file that you use but not as frequently. Dead file: A dead file is where you don't use the file at all and is stored in your archives
A project file is a file which contains information about your program. This could include source code, resources (images, sounds, etc.), and configuration files. A data file is a file which is actually used by your program to persist data between sessions.
is the way a file is design using a pascal language
Master FileTransaction FileReport FileWork FileProgram FileText File
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
In DBMS Multiple user can access file at a time. but in flat file system only one user can access file at a time
kas
A flat file is a simple file containing data without any structured format, while a Database Management System (DBMS) is a software system that manages databases by organizing, storing, and retrieving data. A DBMS allows for more organized and efficient data management, supports relationships between data, and provides features like security and data integrity that are not available with flat files.
1) In a traditional file processing system the work of IT was very hectic while this is not so in DBMS.2) In DBMS redundancy of data is tried to reduced while this was not so in FPS. 3) DBMS maintains data integrity but FPS do not.
storing and retrieving data is faster,flexibility over file processing,real time transactio processing,trac records useful in auditing and control.
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.
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 organization
if we need a modifying ,sreach,delete a file so we need a DBMS
er diagram for hospital management eitity set are doctor department pesent nurse test
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.
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.