Oregon has spent more than $40 million to build its own online health care exchange. It gave that money to a Silicon Valley titan, Oracle, but the result has been a disaster of missed deadlines, a nonworking website and a state forced to process thousands of insurance applications on paper. Some Oregon officials were sounding alarms about the tech company's work on the state's online health care exchange as early as last spring. Oracle was behind schedule and, worse, didn't seem able to offer an estimate of what it would take to get the state's online exchange up and running.