What is the main function of a database system?
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The function of a database is to collect and organize input data. A database is an organized collection of interrelated data that serves a number of applications in an enterprise. The database stores not only the values of the attributes of various entities but also the relationships between these entities.
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A database management system's main goal is to store and transform data into information to help decision-making.
Explanation :
- Large volumes of data are used by organisations. A software programme called a database management system (DBMS) allows for the organisation of data in databases.
- You will frequently see DBMS instead of the full name of database management system because this is the accepted abbreviation. A database management system's main goal is to store and turn data into information that can be used to support decision-making.
- The following three elements make up a DBMS:
- The collection of data-containing files that makes up the physical database.
- The software that enables access to and modification of database information is known as the database engine.
- The specification of the logical structure of the data contained in the database is known as the database schema.
- Users can create, edit, and update data in database files using a DBMS. Data can be stored and retrieved from the database files after they have been created thanks to the DBMS.
- A DBMS specifically does the following tasks:
- Concurrency is the term for several users accessing the same database concurrently, or "at the same time."
- Security: security guidelines to define users' access privileges
- Processes to periodically back up the data and recover it in the event of an issue
- Data integrity is improved through database structure and policies.
- Data descriptions are provided via a data dictionary.
- Database administrators (DBAs) and other experts often oversee the database's development within a company. This guarantees a reliable and effective database structure.
- Access and security issues are also under the control of database administrators.
- For instance, various users within a company utilise databases in various ways.
- Some workers might only wish to observe the data and conduct elementary analysis.
- Furthermore, other personnel are actively involved in updating or adding data to the database.
- Thus, the user permissions must be specified by the database administrator.
- You don't want the database to be mistakenly deleted by someone who simply needs to examine it.
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