Before working with databases like MySQL, it’s important to understand the difference between DBMS and RDBMS.
DBMS stands for Database Management System. It is software that stores and manages data in files or tables but does not support relationships between tables.
RDBMS stands for Relational Database Management System. It is a type of DBMS that stores data in related tables and uses keys (like primary and foreign keys) to manage relationships.
| Feature | DBMS | RDBMS |
|---|---|---|
| Full Form | Database Management System | Relational Database Management System |
| Data Storage | Stores data in files or single tables | Stores data in multiple related tables |
| Relationships | No relationships between data | Supports relationships using keys |
| Data Integrity | Low | High (with constraints) |
| Normalization | Not supported | Supported |
| Examples | File System, XML, Microsoft Access (old versions) | MySQL, Oracle, PostgreSQL, SQL Server |
RDBMS is an advanced version of DBMS that supports table relationships, data integrity, and large-scale applications. That’s why systems like MySQL are based on RDBMS, not just DBMS.
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