The following example will create a virtual directory '/soap-lit' on default HTTP listener and will expose a single method accepting a array of structures which contains an array of integers, integer, varchar and float members. The SOAP message will use the document/literal encoding rules (option Use=literal).

create user SOAP_U1;

VHOST_DEFINE (  lpath=>'/soap-lit',
                ppath=>'/SOAP/', soap_user=>'SOAP_U1',
                soap_opts=>
                vector ('ServiceName', 'Literal',
                    'Namespace', 'http://temp.uri',
                    'SchemaNS', 'http://temp.uri',
                    'MethodInSoapAction', 'yes',
                    'elementFormDefault', 'unqualified',
                    'Use', 'literal'));

create type SOAP_StructA as (varString varchar, varInt integer, varFloat real, varArray integer array);

create procedure echoStructArray (in sa DB.DBA.SOAP_StructA array) returns DB.DBA.SOAP_StructA array
{
  return sa;
};

grant execute on SOAP_StructA to SOAP_U1;
grant execute on echoStructArray to SOAP_U1;

This would produce the following WSDL file when accessing the http://[host:port]/soap-lit/services.wsdl URL.

<?xml version="1.0"?>
<definitions xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:http="http://schemas.xmlsoap.org/wsdl/http/" xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:dime="http://schemas.xmlsoap.org/ws/2002/04/dime/wsdl/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:content="http://schemas.xmlsoap.org/ws/2002/04/content-type/" xmlns:ref="http://schemas.xmlsoap.org/ws/2002/04/reference/" xmlns:ns0="http://temp.uri" xmlns:dl="http://temp.uri" xmlns:tns="services.wsdl" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="services.wsdl" name="VirtuosoLiteral">
  <types>
    <schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://temp.uri">
      <complexType name="echoStructArray_Response_t">
        <sequence>
          <element name="item" type="ns0:SOAP_StructA" minOccurs="0" maxOccurs="unbounded" nillable="true"/>
        </sequence>
      </complexType>
      <complexType name="echoStructArray_sa_t">
        <sequence>
          <element name="item" type="ns0:SOAP_StructA" minOccurs="0" maxOccurs="unbounded" nillable="true"/>
        </sequence>
      </complexType>
      <complexType name="SOAP_StructA">
        <all>
          <element name="varString" type="string" nillable="true"/>
          <element name="varInt" type="int" nillable="true"/>
          <element name="varFloat" type="float" nillable="true"/>
          <element name="varArray" type="ns0:SOAP_StructA_varArray_t" nillable="true"/>
        </all>
      </complexType>
      <complexType name="SOAP_StructA_varArray_t">
        <sequence>
          <element name="item" type="int" minOccurs="0" maxOccurs="unbounded" nillable="true"/>
        </sequence>
      </complexType>
      <element name="echoStructArray">
        <complexType>
          <sequence>
            <element minOccurs="1" maxOccurs="1" name="sa" type="ns0:echoStructArray_sa_t"/>
          </sequence>
        </complexType>
      </element>
      <element name="echoStructArrayResponse">
        <complexType>
          <all>
            <element minOccurs="1" maxOccurs="1" name="CallReturn" type="ns0:echoStructArray_Response_t"/>
          </all>
        </complexType>
      </element>
    </schema>
  </types>
  <message name="echoStructArrayRequest">
    <part element="dl:echoStructArray" name="parameters"/>
  </message>
  <message name="echoStructArrayResponse">
    <part element="dl:echoStructArrayResponse" name="parameters"/>
  </message>
  <portType name="LiteralDocLiteralPortType">
    <operation name="echoStructArray">
      <input message="tns:echoStructArrayRequest" name="echoStructArrayRequest"/>
      <output message="tns:echoStructArrayResponse" name="echoStructArrayResponse"/>
    </operation>
  </portType>
  <binding name="LiteralDocLiteralBinding" type="tns:LiteralDocLiteralPortType">
    <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
    <operation name="echoStructArray">
      <soap:operation soapAction="http://temp.uri#echoStructArray" style="document"/>
      <input name="echoStructArrayRequest">
        <soap:body use="literal"/>
      </input>
      <output name="echoStructArrayResponse">
        <soap:body use="literal"/>
      </output>
    </operation>
  </binding>
  <service name="VirtuosoLiteral">
    <documentation>Virtuoso SOAP services</documentation>
    <port name="LiteralDocLiteralPort" binding="tns:LiteralDocLiteralBinding">
      <soap:address location="http://example.com/soap-lit"/>
    </port>
  </service>
</definitions>