I have a lot of experience, over 25+ years, with Oracle databases from version 6. I exploited Oracle on various UNIX platforms (Solaris, TRU64UNIX, SCO UNIX, Linux, Cloud Amazon EC2 )and Amazon Cloud RDS and Windows. I have a very good knowledge and practical experience of migration Oracle between different hardware platforms ALPHA DIGITAL(DIGITAL UNIX) -SUN (SOLARIS) - x86 (LINUX) and migration between versions from 6, 7.3, 8.0, 8i, 9i, 10g ,11g, 12c, 19c. I have a collection of Oracle old distributions. Now I'm freelancer on the upwork. Email dmitrydemin1973@gmail.com)