If you want DB2 in the operating system, you need an "IBM midrange" or iSeries. Much shorter code-path, much faster. If you want the fastest record access, the

If you want DB2 in the operating system, you need an "IBM midrange" or iSeries. Much shorter code-path, much faster. If you want the fastest record access, the operating system z/TPF for the IBM Mainframe. Not only just fixed-length records, but jus fixed-length records of one size. Effectively, there are no "third-party libraries" (until you get to IBM's Java, or any language someone has ported (Lua is a popular example).