Oracle Corp. signage on the floor of the New York Stock Exchange.Photographer: Michael Nagle/Bloomberg Welcome to Tech In Depth, our daily newsletter about the business of tech from Bloomberg’s journalists around the world. Today, Brody Ford looks at one of the downsides of Oracle’s leap into prominence as a provider of cloud computing for artificial intelligence work. Amazon’s trial: The US Federal Trade Commission opened its trial against Amazon, accusing the e-commerce giant of duping custom...