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Understanding Relational Databases
cloud.google.com/learn/what-is-a-relational-databaseYapay zekadan makale özeti
- Definition and Structure
- Relational database organizes data in tables with columns and rows
- Developed by E.F. Codd in 1970s for linking tables using common attributes
- Each table contains unique primary key and references foreign keys
- Key Features
- Allows declarative queries without specifying computation details
- Supports ACID compliance for data validity
- Enables multiple simultaneous access with built-in locking
- Provides role-based security for user access control
- Benefits
- Offers flexibility in adding, updating, and deleting tables
- Improves data integrity through normalization
- Enables easy SQL queries for non-technical users
- Supports complex relationships between data points
- Comparison with NoSQL
- Relational databases store data in tabular structure
- NoSQL databases handle unstructured data as individual files
- NoSQL databases offer more flexibility for changing data types