https://www.techtarget.com/searchdatamanagement/tip/What-is-the-difference-between-DB2-UDB-and-DB2-OS-390
What is the difference between DB2 UDB and DB2 OS/390? | TechTarget
DB2 UDB and DB2 OS/390 are comprised of completely different code bases. The code is separate for the mainframe (z/OS and OS/390) DB2 and the distributed LUW...
what isthe differencedb2 udbos 390