DECLARE     l_xml_clob CLOB;     l_xsd_clob CLOB;     l_xml XMLType;     l_xsd XMLType;     l_errors XMLType;     l_error_count NUMBER; BEGIN     -- Load XML and XSD into CLOB variables     -- Convert CLOBs to XMLType     l_xml := XMLType(l_xml_clob);     l_xsd := XMLType(l_xsd_clob);     -- Validate XML against XSD     l_errors := l_xml.schemaValidate(l_xsd);     -- Count the number of errors     l_error_count := l_errors.geterrorcount();     -- Output error details     IF l_error_count > 0 THEN         FOR i IN 1..l_error_count LOOP             DBMS_OUTPUT.put_line('Error ' || i || ':');             DBMS_OUTPUT.put_line('Line number: ' || l_errors.geterrline(i));             DBMS_OUTPUT.put_line('Error message:...