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В Тегеране пролились нефтяные дожди и предупредили о кислотных14:17
。新收录的资料是该领域的重要参考
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.
GPU时代落幕？硅谷巨头集体「叛逃」，英伟达1500亿疯狂自救。业内人士推荐新收录的资料作为进阶阅读
When the price of something scarce—concert tickets, Saturday night tables, theme park rides—is set far below what the market would naturally bear, the scarcity doesn’t disappear. It just moves sideways, into queues, lotteries, intermediaries, and perks—into hiding, in other words.
Фото: Raghed Waked / Reuters，详情可参考新收录的资料