How to fix the Oracle error ORA-39124: dump file name “string” contains an invalid substitution variable?

In this post, you’ll learn more about the Oracle ErrorORA-39124: dump file name “string” contains an invalid substitution variable with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-39124: dump file name “string” contains an invalid substitution variable

Reason for the Error ORA-39124: dump file name “string” contains an invalid substitution variable

The substitution variable ‘%’ must be followed by ‘%’,’u’, or ‘U’.

How to fix the Error ORA-39124: dump file name “string” contains an invalid substitution variable ?

You can fix this error in Oracle by following the below steps

Correct the substitution variable in the dump file name and re-enter the command.