Database Management Systems

5 Questions

Data Standardization

To reduce data redundancy

Data Storage and Retrieval

To model database schema

Managing large volumes of unstructured data

Study Notes

A database management system (DBMS) is a software that allows organizations to define, create, maintain, and manipulate databases.
DBMS acts as an intermediary between the user and the database, providing a layer of abstraction and simplifying database administration.

Defines a database structure: DBMS defines the structure of the database, including the relationships between data entities.
Provides data security: DBMS ensures that only authorized users have access to the database and its data.
Manages data redundancy: DBMS minimizes data redundancy by ensuring that each piece of data is stored only once.
Provides data integrity: DBMS ensures that the data is consistent and follows a set of rules to maintain data accuracy.
Manages concurrent access: DBMS manages concurrent access to the database, ensuring that multiple users can access the database simultaneously without conflicts.

Hardware: The physical components of the database system, such as the server, storage devices, and network infrastructure.
Software: The DBMS software itself, including the database management system, operating system, and other software components.
Data: The actual data stored in the database, including the data itself, metadata, and other supporting data.
Procedures: The set of rules and protocols that govern the operation and management of the database.

Master data management (MDM) is a set of processes and tools that enable organizations to collect, integrate, and maintain consistent and accurate master data.
Master data includes critical enterprise data entities such as customers, products, suppliers, and employees.

Database normalization is the process of organizing the fields and tables of a database to minimize data redundancy and dependency.
Normalization involves dividing large tables into smaller, related tables to improve data integrity and reduce data redundancy.

An entity-relationship diagram (ERD) is a visual representation of data entities and their relationships.
Relational modeling is a conceptual representation of data entities and their relationships, used to design and implement a database.

Enterprise content management (ECM) is a set of processes and technologies that enable organizations to capture, manage, store, preserve, and deliver content across the enterprise.
ECM involves the management of unstructured data, such as documents, images, and videos.