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Mongo is one of the few NoSqls to offer "unique" keys. While common in SQL, this is a big differentiator from other NoSqls and allows many use cases that would

Mongo is one of the few NoSqls to offer "unique" keys. While common in SQL, this is a big differentiator from other NoSqls and allows many use cases that would have otherwise ended up in the SQL world

digitalzombie 9y ago
What? Are you talking about like primary key? Cassandra have this, any hash database should have some sort of unique concept or key, and IIRC graph database all node should be unique. I didn't realize this was a rare thing in NoSQL world.
- threeseed 9y ago
  No. They are talking about enforcing uniqueness on a particular column. Nothing to do with the primary key and yes it is definitely rare in the NoSQL world.
  - ssijak 9y ago
    To me, it really is kind of funny that such a basic thing is rarity in NoSQL world.
  - deleted 9y ago
    [deleted]