Ora-39358 Export Dump File Version 19.0.0.0.0 Not Compatible With Target Version 12.2.0 !!hot!! Online
creates a dump file matching its own compatibility level. Because Oracle 19c introduced metadata structures unknown to Oracle 12.2, the 12.2 import engine fails to parse the file. Parameter Mechanism
You cannot "force" Oracle 12.2 to accept a native 19c dump file. However, you have three viable strategies to migrate the data. creates a dump file matching its own compatibility level
with VERSION parameter before production migrations. creates a dump file matching its own compatibility level
: Add the VERSION parameter to your expdp command. creates a dump file matching its own compatibility level