(Bloomberg) -- Oracle Corp. posted disappointing cloud revenue, suggesting it will take longer than expected for the company’s recent huge AI bookings to pay off.Fiscal second-quarter cloud sales increased 34% to $7.98 billion, while revenue in the company’s closely watched infrastructure business increased 68$4.08 billion. Both numbers fell just short of analysts estimates. Remaining performance obligation, a measure of bookings, jumped to $523 billion in the fiscal second quarter, which ended Nov. 30 ...