Since Mongo is a NoSQL database, it has its own JavaScript-like query language to work with data. As Postgres is an SQL database, it needed to adopt SQL to allow for working with JSON data - it has its own rich set of JSON functions and operators. Let's compare two contenders by going through lots of practical examples.
这一系列动作表明，作为百度的一把手，李彦宏从以往董事长兼 CEO 的幕后管理角色中走出来，朝着业务方面又探出一步，将一些涉及到 AI 研发和落地的业务纳入到自己的监督和管理之下——对于百度这样的大型组织来说，有了一把手的推动，事情往往会更加顺利。
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You usually can’t take your team with you when you sell — but that doesn’t mean losing track of talent. I keep a spreadsheet of “A players”: people who think differently, act quickly, and build brilliantly. I follow them, keep in touch, and when the right opportunity comes, I know exactly who I want by my side.
[김승련 칼럼]장동혁-한동훈, 알고 보면 운명공동체