DBMS benefits?

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DBMSs have five main advantages: data structure, permission control, processing speed, modular development, and independent backup functionality. They allow for efficient storage and retrieval of data, with relationships between datasets defined in the system. Access can be controlled at the table level, and processing speed is improved. Modular development allows for reuse of code, and independent backup functionality allows for separate storage of data and programming logic.

There are five main advantages of DBMSs or database management systems: data structure, permission control, processing speed, modular development and independent backup functionality. A DBMS is computer software that manages the organization and access to data in a database.

A DBMS allows you to store large amounts of data as efficiently as possible. The data is stored in independent information lists. Additional datasets can be added at any time. The relationships between the datasets are defined in the DBMS and can be changed without affecting the data.

For example, a simple database has three tables: car names, engine sizes, and seating capacities. You can create reports or queries to access these tables and logically link them together. Six months later, you can add another table listing your security ratings. These tables can be updated independently, without impacting any reports already created. The database management system can be programmed to run various queries or reports to retrieve specific data.

It is very common to have different levels of access built into a database system and a DBMS makes this very easy to manage. Access can be defined at the data table level. If the user doesn’t have access to a specific table, they can’t run any queries that use data from that table. Control at this level is easy to maintain and preferable to setting access at the individual report level.

The processing speed and responsiveness of a computer system is much better with a DBMS than with a linear computer program. Common functions, such as counting, sum and calculation, are programmed at the DBMS level. In a DBMS, programs to update, report and store information are set up at the system level.
Each section of the system can reuse the code of another section or module. For example, inventory data can be stored and managed in a completely separate form from sales data. However, queries can be written to combine information from these two modules without having to change the database structure. This assumes that both modules are in the same database management system.
DBMSs provide a separate architecture for data and programming logic. This separation allows the database manager to back up only data on one hard drive and programming on another. In case of hardware failure for both systems, it is possible to redirect the program server to use the data from the backup and vice versa.

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