DBU is a popular and handy utility that makes it easy for programmers, administrators, and users to view and access any file in DB2/400 (sometimes actually referred to by its IBM-given name, DB2 for i5/OS), without programming. The software was originally designed as a replacement for IBM’s native DB2/400 database utility, called Data File Utility (DFU), but since then it has evolved to tackle tasks in many other areas. In recent years,