Yes. I had to learn to read COBOL using VSAM to port reports to a Cognos product and Oracle. One of the COBOL devs pulled me aside one day after we were happy

Yes. I had to learn to read COBOL using VSAM to port reports to a Cognos product and Oracle. One of the COBOL devs pulled me aside one day after we were happy to get one of the reports down to a few minutes. (I'll gladly admit that Cognos was a big part of the run-time cost). He ran the legacy report on the mainframe and it took well under a second. Not saying that mainframes are better but I felt like we'd actually wasted our time polishing a turd (Cognos) instead of doing something useful.