Grokking System Design Fundamentals
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Shouldn't SQL normalization increase read complexity?

Mohit

Jul 14, 2024

Under the Key Differences section, it says:

Normalization increases the complexity of the write operations.

However I thought it would increase the read complexity since now we have to do a join to get the same data.

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bauyrzhan.a.tokenov a year ago

I thought the same, must be a mistake.

Design Gurus
Design Gurusa year ago

That is right. Normalization makes writes faster but reads slower whereas denormalization makes writes slower but reads faster.

We have updated the lesson with an example.

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