It's been a rollercoaster year for Oracle investors, as they try to assess the strength of the software giant's position in the artificial intelligence boom. The stock is up more than 30% for the year even after a 23% plunge in October, which was its worst month since 2001. It's recovered a bit in November, climbing almost 10% for the month as of Tuesday. Heading into the company's fiscal second-quarter earnings report on Wednesday, pressure is building on management — and newly installed CEOs Clay Magouyrk ...