The main functions of a DBMS are as follows:
Saving, deleting, and overwriting of data.Managing the metadata of a database.the organization of the data based on the underlying data model.the definition of data types and attributes.the provision of database operations for writing and reading data access and for searching.ensuring data security and data protection.ensuring data integrity.provision of communication interfaces for multi-user access.optimization of the database for fast and high-performance access and queries as well.provision of reports and key figures on parameters, technology, and operating data of the DBMS.
A database manager’s job is to keep the integrity of the data in check and provide access to authorized users only. Usually, a DMBS is a relational database management system, which is accessed or queried using the Structured Query Language (SQL) as the standard interface for systems and users. A DMBS works like a file manager that takes care of managing data in databases rather than files in file systems. In the IBM mainframe operating system, non-relational data managers are called access methods. The management system is an important component of the overall database product. Microsoft Access is a good option for small businesses and individual users.
