How to fix the Oracle error ORA-19162: XPTY0004 – XQuery type mismatch: invalid argument types ‘string’, ‘string’ for function ‘string’?

In this post, you’ll learn more about the Oracle ErrorORA-19162: XPTY0004 – XQuery type mismatch: invalid argument types ‘string’, ‘string’ for function ‘string’ with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19162: XPTY0004 – XQuery type mismatch: invalid argument types ‘string’, ‘string’ for function ‘string’

Reason for the Error ORA-19162: XPTY0004 – XQuery type mismatch: invalid argument types ‘string’, ‘string’ for function ‘string’

The type of the arguments that were passed to the given function was not valid.

How to fix the Error ORA-19162: XPTY0004 – XQuery type mismatch: invalid argument types ‘string’, ‘string’ for function ‘string’ ?

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

Fix the arguments to be of a type appropriate for the given function.