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· · 来源:maker资讯

Well, MongoDB was designed and created as a document database first and foremost, not an SQL one (NoSQL). It is focused and optimized for this particular use case and a way of storing and accessing data. PostgreSQL on the other hand, is a relational, SQL database that later on added support for composite column types like JSON/JSONB, ARRAY and others. Over the years, it has extended and optimized storing JSON documents in its own binary JSONB format, as well as added more ways to index, query and modify data of this type.

The Air 4 Pro are augmented reality glasses that connect to a smartphone, laptop, gaming handheld, or other device. Simply plug them into any compatible device, and they should start to work immediately — no setup required. You do have to stay connected at all times via the included USB-C cable, but you don't have to worry about battery life, which is nice.

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shaped how we think and how we work: with curiosity, discipline, and the kind of honesty

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