How to fix the Oracle error ORA-19208: parameter string of function string must be aliased?

In this post, you’ll learn more about the Oracle ErrorORA-19208: parameter string of function string must be aliased with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19208: parameter string of function string must be aliased

Reason for the Error ORA-19208: parameter string of function string must be aliased

The indicated parameter of the XML generation function has not been aliased, although it is an expression.

How to fix the Error ORA-19208: parameter string of function string must be aliased ?

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

Specify an alias for the expression using the AS clause.