How to fix the Oracle error ORA-19211: column ‘string’, specified as key using DBMS_XMLSTORE.setKeyColumn() , must be of scalar type?

In this post, you’ll learn more about the Oracle ErrorORA-19211: column ‘string’, specified as key using DBMS_XMLSTORE.setKeyColumn() , must be of scalar type with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19211: column ‘string’, specified as key using DBMS_XMLSTORE.setKeyColumn() , must be of scalar type

Reason for the Error ORA-19211: column ‘string’, specified as key using DBMS_XMLSTORE.setKeyColumn() , must be of scalar type

The column specified using setKeyColumn() was a non-scalar type column.

How to fix the Error ORA-19211: column ‘string’, specified as key using DBMS_XMLSTORE.setKeyColumn() , must be of scalar type ?

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

Change the column specified to be a scalar column in the table