SQL 错误,求解

 //更新客户记录
        public bool updateCustomerData(Model_CustomerManager model)
        {
            OleDbParameter[] parameters = { 
            new OleDbParameter("@CustomerCompany", model.CustomerCompany),
            new OleDbParameter("@CustomerContact", model.CustomerContact),
            new OleDbParameter("@CustomerEmail", model.CustomerEmail),
            new OleDbParameter("@CustomerPhone", model.CustomerPhone),
            new OleDbParameter("@CustomerFax", model.CustomerFax),
            new OleDbParameter("@CustomerUrl", model.CustomerUrl),
            new OleDbParameter("@CustomerAddress", model.CustomerAddress),
            new OleDbParameter("@CustomerNote", model.CustomerNote),
            new OleDbParameter("@CustomerId", model.CustomerId),        };
            StringBuilder strSql = new StringBuilder();
            strSql.Append("Update CustomerData Set ");
            strSql.Append("company=@CustomerCompany,");
            strSql.Append("contact=@CustomerContact,");
            strSql.Append("email=@CustomerEmail,");
            strSql.Append("phone=@CustomerPhone,");
            strSql.Append("fax=@CustomerFax,");
            strSql.Append("website=@CustomerUrl,");
            strSql.Append("address=@CustomerAddress,");
            strSql.Append("note=@CustomerNote");
            strSql.Append(" where id=@CustomerId");
            return DBhelper.ExecuteNonqueryBool(strSql.ToString(), parameters);     //添加新客户记录
        public bool addNewCustomer(Model_CustomerManager model, string dataTable)
        {
            OleDbParameter[] parameters = { 
            new OleDbParameter("@CustomerCompany", model.CustomerCompany),
            new OleDbParameter("@CustomerContact", model.CustomerContact),
            new OleDbParameter("@CustomerEmail", model.CustomerEmail),
            new OleDbParameter("@CustomerPhone", model.CustomerPhone),
            new OleDbParameter("@CustomerFax", model.CustomerFax),
            new OleDbParameter("@CustomerUrl", model.CustomerUrl),
            new OleDbParameter("@CustomerAddress", model.CustomerAddress),
            new OleDbParameter("@CustomerNote", model.CustomerNote),        };            return DBhelper.ExecuteNonqueryBool("insert into " + dataTable + " ( company,contact,email,phone,fax,website,address,note) values ( @CustomerCompany,@CustomerContact,@CustomerEmail,@CustomerPhone,@CustomerFax,@CustomerUrl,@CustomerAddress,@CustomerNote )", parameters);
        }上面的的句子有错吗? 为什么都执行不了啊?看了半天看不出来.