Discover why the simplest database type might be exactly what your application needs - and why Amazon bet their entire infrastructure on this approach!
Imagine the ultimate minimalist : You give it a key, it gives you a value. That's it.
No complex queries. No joins. No aggregations. Just: "Hey database, here's key 'user_12345', give me the data!"
Popular Examples: Redis, DynamoDB, Aerospike
The Amazon Story: When Amazon analyzed their massive system, they discovered something shocking: 95% of their database operations were simple key-based lookups!
They weren't using fancy SQL features - just primary key lookups!
What you can do:
GET key → returns valuePUT key, value → stores dataDELETE key → removes dataWhat you CAN'T do:
The trade-off: By accepting these limitations, key-value stores can:
Key Insight: "Most applications are just fancy key-value lookups in disguise - and that's perfectly fine!"
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