Oracle Solution for Error ora-19726

ORA-19726: cannot plug data [string] at level string into database running at compatibility level string

What triggered the Error:

me of the data in the pluggable set requires a compatibility level higher than what is currently allowed by the database. The string in square bracket is the name of the compatibility type associated with the data.

What should we do to fix it:

ise the "compatible" init.ora parameter and retry the operation.