How to call procedures in xsjs services in sap hana cloud ?

Hello experts,

I am developing one SAP Hana native application and trying to invoke procedure in  my server side javascript(xsjs). But I am not able to do that ,getting empty result as output.

Procedure:

PROCEDURE "<schema>"."<account>.hana.PrognosticManagement.procedures::TEST"(

  OUT FIELD1 VARCHAR(5)

  )

  LANGUAGE SQLSCRIPT

  SQL SECURITY INVOKER

  READS SQL DATA

AS

BEGIN

  DECLARE FIELD VARCHAR(5);

  SELECT 'A'

  INTO FIELD1

  FROM DUMMY;

-- FIELD1 := :FIELD;

END;

XSJS:

//Get parameters

var tx_data_query = "";

var resultSet = null;

function getTxtData(){

  var txlist = [];

    var connection = $.db.getConnection();

    var statement = null;

      //  tx_data_query = "CALL \"<schema>\".\"<account>.hana.PrognosticManagement.procedures::TEST\"(?)";

    tx_data_query = "CALL \"<schema>\".\"<account>.hana.PrognosticManagement.procedures::TEST\"(FIELD1 => ?)";

    try{

     statement = connection.prepareCall("CALL \"<schema>\".\"<account>.hana.PrognosticManagement.procedures::TEST\"(?)");

     statement.execute();

     resultSet = statement.getResultSet();

     var txtItem;

     while(resultSet.next()){

      txtItem = {};

      txtItem.Value = resultSet.getString(1);

      txlist.push(txtItem);

     }

    } finally {

    resultSet.close();

    statement.close();

    connection.close();

    }

    return txlist;

}

function doGet() {

          try{

                    $.response.contentType = "text/plain";

                    $.response.setBody(JSON.stringify(getTxtData()));

          }

          catch(err){

                    $.response.contentType = "text/plain";

                    $.response.setBody("Error while executing query: [" + resultSet + "]");

                    $.response.returnCode = 200;

          }

}

doGet();

Output

[]

Thanks

Pragati Gupta