When a computer user wants to store data electronically they must do so by placing data in files. Files are stored in specific locations on the hard disk (directories). The user can create new files to place data in, delete a file that contains data, rename the file, etc -- all known as file management; a function provided by the Operating System (OS).
If the user wishes to perform some operation on the data he has placed in the file, such as viewing a list of his friends that celebrate their birthday in June, he has to scroll through all the data by himself in order to see the data he is interested in. Moreover, he has to know where he put the files that contain the data, and if there are multiple files he has to remember to go through each one of them.
A Database Management System is intended to remove this burden of manually locating data, and having to scroll through it by allowing the user to create a logical structure for the data beforehand, and then allowing the user to place the data in the database that the DBMS is managing. In this way the DBMS abstracts away the physical concerns of organising files, and provides the user with a logical view of the data.
Note, that the DBMS will still -- behind the scenes though -- place the data in files on the hard-disk.
Database is multiuser and provides utilization of resources whereas in file management there is no utilization of resources.
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).
In File System, files are used to store data while, collections of databases are utilized for the storage of data in DBMS. Although File System and DBMS are two ways of managing data, DBMS clearly has many advantages over File Systems. Typically when using a File System, most tasks such as storage, retrieval and search are done manually and it is quite tedious whereas a DBMS will provide automated methods to complete these tasks. Because of this reason, using a File System will lead to problems like data integrity, data inconsistency and data security, but these problems could be avoided by using a DBMS. Unlike File System, DBMS are efficient because reading line by line is not required and certain control mechanisms are in place.
File System vs Data base Management System :- 1. Files act locally where as DBMS saves directly in a database 2. Saves in temporary locations where as DBMS in well arranged and permanent data base locations 3. In File System., transactions are not possible where as various transactions like insert, delete, view, updating etc are possible in DBMS 4. Data will be accessed through single or various files where as in DBMS, tables (schema) is used to access data. 5. A "File manager" is used to store all relationships in directories in File Systems where as a data base manager (administrator) stores the relationship in form of structural tables 6. Last.... but not the least.... Data in data bases are more secure compared to data in files!!
Yes. Database Management Systems (DBMS) have replaced the traditional file based data storage systems. This is because they are:More powerfulEasier to manangeCan store large volumnes of dataManipulation & fetching of data from a DBMS is many times easier than doing so from a file based data storage systemFaster
Database Management Systems, or DBMS, are software applications specially designed to interact with the user and other applications, as well as the database itself, to analyze data. All files in a software have file name extensions to identify their file types. For memory files .mem is the file name extension.
1. Files act locally where as DBMS saves directly in a database 2. Saves in temporary locations where as DBMS in well arranged and permanent data base locations 3. In File System , transactions are not possible where as various transactions like insert,delete,view,updating etc r possible in DBMS 4. Data will be accessed through single or various files where as in DBMS, tables is used to access data 5. A "File manager" is used to store all relationships in directories in File System where as a data base manager (administrator) stores the relationship in form of structural tables 6.Data in DB are more secure compared to data in files!!
dbms- database management systems............ it is a collection of interrelated data and the set of programs to access those datas....... it is used to meet the disadvantages of the file systems....... there are many disadvantages of filesystems....... lik,, data redundancy and data in consistency, difficulty to access data,integrity problems, atomicity problems............. dbms is quite complicated but better than file systems
A database coordinates the physical and logical access to the data; a file-processing system only coordinates physical access to the dataA DBMS reduces the amount of data duplicationA DBMS is designed to allow flexibility in what queries give access to the data, where a file-processing system only allows pre-determined access to data (by specific compiled programs)A DBMS is designed to coordinate and permit multiple users to access data at the same time. A file processing system is much more restrictive in simultaneous data access
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