A new survey of 316 executives from large global companies, conducted by Forbes Insights and sponsored by Teradata in partnership with McKinsey, provides a fresh look at the state of big data analytics implementations. About 90 percent of organizations report medium to high levels of investment, and about a third call their investments “very significant.” Most important, about two-thirds of respondents report that big data and analytics initiatives have had a significant, measurable impact on revenues. 59% of the executives surveyed consider big data and analytics either a top five issue or the single most important way to achieve a competitive advantage…