What are the key concepts of databases?

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Accepted Answer

Key concepts of databases include data models, normalization, relationships, and transactions, essential for efficient data management.

Data Models: Structures like relational, NoSQL, and object-oriented define how data is organized. Example: Relational databases use tables.
Normalization: Process of organizing data to reduce redundancy. Example: Splitting a customer table into separate tables for orders and customers.
Relationships: Connections between tables, such as one-to-many or many-to-many. Example: A customer can have multiple orders.
Transactions: Ensures data integrity through ACID properties (Atomicity, Consistency, Isolation, Durability). Example: A bank transfer must complete fully or not at all.