Data is always structured in a system one way or another, even in so-called NoSQL just it may be structured differently than some may expect.
If it is not structured then you're in trouble because there is no tangible structure at all whatsoever.
Edit Also, any so-called SQL database can have non-normalized data that are faster to query and takes more space, so... I don't know
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Data is always structured in a system one way or another, even in so-called NoSQL just it may be structured differently than some may expect.
If it is not structured then you're in trouble because there is no tangible structure at all whatsoever.
Edit
Also, any so-called SQL database can have non-normalized data that are faster to query and takes more space, so... I don't know