IBM DB2's 25th Anniversary: Birth Of An Accidental Empire > > Intelligent Enterprise: Better Insight for Business Decisions

IBM DB2's 25th Anniversary: Birth Of An Accidental Empire > > Intelligent Enterprise: Better Insight for Business Decisions: "At first, relational database was a highly mocked product, halting in its performance compared to the programmed-path systems. Now it represents an $18.6 billion a year market."

Does your company still use VSAM? Most companies with mainframes do... learn the context of why those dinosaurs won't give it up here. A good read.