Advantages of DBMS over File System
DBMS stands for Database Management System, which is a tool, or a software used for the creation, deletion, and manipulation of the data in the database. DBMS helps users to insert new data sets into the existing database or delete some data from the database. DBMS allows users to share the database, which means multiple users can access the database and use its data. DBMS also makes sure that the data will be consistent and secure. In DBMS, we can define our own data structure and data with specific constraints. DBMS uses various algorithms for securing its data from cyber-attacks. So, we can define the DBMS as an interface between the database and the user. DBMS is evolving with time, and we can see artificial intelligence-based database management systems after a few times.
The file management system is also a database management system where data is stored in the form of files. It is an old traditional way to store the data in the files. Each file does not have any relation with other files. Tables are stored in the files, and sometimes only a single table is stored in a file which is also known as a flat file.
Advantages of DBMS over File Systems
Redundancy means repeating the data in a system. In a normal file system, there is a high chance that there can be various files of the same data used by different users for specific purposes. If any user changes the data in its files, then the changes are not reflected in all files. This creates inconsistency in the data, and it may lead to the failure of the system. But in the DBMS, there is only one repository of data, and multiple users can use it. If any user changes the data, then it is reflected to each user as they are using the same repository.
In the normal file system, data sharing is too difficult because file sharing is a complex task. In DBMS, all the data is centralized, so data sharing is a very easy task.
When more than one user accesses the database simultaneously, then it is called concurrency. In a file system, when multiple users are using the files at the same time, then there may be a chance of anomalies in the data due to changes, and it does not provide any method to detect anomalies. But in DBMS, we have a locking system to detect the anomalies so we can protect the data.
To search the data in a file system, we have to write a specific program and run it. In DBMS, we have query languages by which we can write small queries to get the data we want from the database. We can use various query languages, like MySQL, Oracle, etc., for a database to search and retrieve the data.
When we insert new data into the database, we require some specific constraints on the data like integer or not null, etc. The file system does not provide any system to check the constraints, whereas DBMS has the functionality to check the constraints on the data, and it allows user defined data types.
There are various reasons by which our system can crash. Once a system crashes, the file system loses all its files and data, and we can not recover it again. But DBMS has a recovery manager which can recover the data if the system crashes.
In the file system, we have only password protection to save the files and data, but it is not reliable. In DBMS, we have special algorithms and features to secure the data.
For the backup of data, DBMS creates a subsystem, whereas the file system does not create any system for data backup.
DBMS provides various kinds of the interface to users like application interfaces, graphical interfaces, etc.
The file system is not maintained easily because it is decentralized, whereas DBMS is a centralized system, so it becomes easy to maintain it.