C) What is a database? What is a relational database? What is a database management
system? What software components does a database management system contain? (8 points)
Answer to question I [C]
Database:
A database is a logically organized collection of structured data, usually kept electronically in a
computer system. Data may then be accessed, managed, updated, regulated, and organized with
ease. For writing and querying data, most databases employ structured query language (SQL). For
example, a company database may include tables for products, employees, and financial records.
Each of these tables would have different fields that are relevant to the information stored in the table.
Relational database:
A relational database is a digital database based on E. F. Cod’s relational data model, which he
proposed in 1970. A relational database management system is a system for maintaining relational
databases. Many relational database systems include the option of querying and managing the
database using SQL.Users can handle established data relationships across different databases with
standard relative informationbases. Microsoft SQL Server, Oracle information, MySQL, and IBM
DB2 are examples of commonplace relative databases.
Database management system:
A Database Management System (DBMS) is computer software that stores, retrieves, defines, and
manages data in databases.The database management system (DBMS) organizes and manages
incoming data, as well as allowing users and other programs to modify or extract it. MySQL,
PostgreSQL, Microsoft Access, SQL Server, FileMaker, Oracle, RDBMS, dBASE, Clipper, and
FoxPro are some examples of database management systems.
A database management system (DBMS) is a software system that allows a user to define,
construct, and maintain a database as well as regulate data access.
software components:
Every DBMS comes with a set of integrated components and tools that are required to complete
nearly all database management tasks. Some DBMS software even allows users to go beyond the
main functionality by directly or via plugins integrating with third-party products and services.
We'll look at the components that are similar to all DBMS software in this section, which include:
1. Engine for storing data
2. Language for making queries
3. Processor of queries
4. Engine for optimization
5. Catalogue of metadata
6. Manager of logs
7. Tools for reporting and monitoring
8. utilities for data