NHibernate.Exceptions.GenericADOException被捕获

Question

这是我的代码：

IList<Debtor> lstdebtors = session.GetNamedQuery("SEL_DBR_BY_CLIENT").SetParameter("V_DBR_CLIENT", client)
                         .SetParameter("V_USER_ID", userName)
                         .SetParameter("V_NUMBER_OF_ROWS", maximumRows)
                         .SetParameter("V_STARTS_WITH", startRowIndex)
                         .List<Debtor>();
return lstdebtors.ToList<Debtor>();

这是我的存储过程：

create or replace

PROCEDURE     "SEL_DBR_BY_CLIENT"
(
    debtor_cursor OUT SYS_REFCURSOR,
    V_DBR_CLIENT IN VARCHAR2,
    V_USER_ID IN VARCHAR2,
    V_NUMBER_OF_ROWS IN NUMBER,
    V_STARTS_WITH IN NUMBER  
)
IS
BEGIN        
    Open debtor_cursor for
    SELECT 
        DBR_NO,    
        DBR_ACN,                        
        DBR_NAME1,              
        CLT_NAME_1
    FROM XYZ
END;

这是映射：

<sql-query name="SEL_DBR_BY_CLIENT" >
    <return class="Debtor" />
    { call CDS.SEL_DBR_BY_CLIENT(:V_DBR_CLIENT,:V_USER_ID,:V_NUMBER_OF_ROWS,:V_STARTS_WITH)) }
  </sql-query>

我在下面收到错误：

NHibernate.Exceptions.GenericADOException was caught
  Message=could not execute query
[ { call CDS.SEL_DBR_BY_CLIENT(?,?,?,?)) } ]
  Name:V_DBR_CLIENT - Value:AAA001  Name:V_USER_ID - Value:ALO  Name:V_NUMBER_OF_ROWS - Value:10  Name:V_STARTS_WITH - Value:0
[SQL: { call CDS.SEL_DBR_BY_CLIENT(?,?,?,?)) }]
  Source=NHibernate
  SqlString={ call CDS.SEL_DBR_BY_CLIENT(?,?,?,?)) }

这是内部异常 错误[42000] [Oracle] [ODBC]语法错误或访问冲突。 请告诉我导致错误的原因。