Relational Database Management System (RDBMS)
A Relational Database Management System (RDBMS) is a type of database management system that organizes data into related tables. It is based on the relational model introduced by E.F. Codd, where data points are linked to one another through common keys.
Key Advantages
- Data Integrity & Accuracy: RDBMS uses strict rules and constraints (like Data Types, Not Null, and Unique) to ensure data remains accurate and consistent.
- ACID Compliance: It guarantees Atomicity, Consistency, Isolation, and Durability.
- Relationship Management: It excels at connecting complex data.
- Security: RDBMS offers granular security, allowing administrators to control exactly who can view, edit, or delete specific tables or rows.
- Standardized Language: It uses SQL (Structured Query Language), making it easy for developers to switch between different systems like MySQL and SQL Server.
Key Disadvantages
- Scalability Challenges: RDBMS is designed to scale vertically (adding more power to a single server).
- Rigid Schema: You must define the structure (columns and data types) before adding data.
- Performance with Large Data: As the volume of data grows into the petabytes, complex “JOIN” operations between many tables can become slow
- Cost: Maintenance costs is high.