Backup and Restore
From 21c to 19c
What you need:
Both Wallets on different directories located
instantclient
sqlcl
#Switch to different Wallet
export TNS_ADMIN=/usr/lib/oracle/network/prod
#Dump the Data
/usr/lib/oracle/21/client64/bin/expdp admin/xxxyyy@prod ...
yaitcon.hashnode.dev1 min read