/// <summary>
            /// Searches the customers with given search conditions.
            /// </summary>
            /// <param name="request">The data service request.</param>
            /// <returns>The data service response.</returns>
            private EntityDataServiceResponse <GlobalCustomer> SearchCustomers(SearchCustomersDataRequest request)
            {
                ThrowIf.Null(request, "request");
                ThrowIf.Null(request.QueryResultSettings, "request.QueryResultSettings");

                var query = new SqlPagedQuery(request.QueryResultSettings)
                {
                    From = "GETCUSTOMERSEARCHRESULTS(@bi_ChannelId, @dt_ChannelDate, @nvc_SearchText)"
                };

                query.Parameters[DatabaseAccessor.ChannelIdVariableName] = request.RequestContext.GetPrincipal().ChannelId;
                query.Parameters[SearchText]         = '"' + request.Keyword.Replace(" ", "* ").Replace("\"", "\"\"") + '*' + '"';
                query.Parameters[LocaleVariableName] = request.RequestContext.LanguageId;
                query.Parameters[DatabaseAccessor.ChannelDateVariableName] = request.RequestContext.GetNowInChannelTimeZone().Date;

                using (DatabaseContext databaseContext = new DatabaseContext(request.RequestContext))
                {
                    return(new EntityDataServiceResponse <GlobalCustomer>(databaseContext.ReadEntity <GlobalCustomer>(query)));
                }
            }
            /// <summary>
            /// Searches the customers with given search conditions.
            /// </summary>
            /// <param name="request">The data service request.</param>
            /// <returns>The data service response.</returns>
            private static EntityDataServiceResponse <GlobalCustomer> SearchCustomers(SearchCustomersDataRequest request)
            {
                var procedure = new SearchCustomersProcedure(request.RequestContext);
                PagedResult <GlobalCustomer> globalCustomers = procedure.SearchCustomers(request.Keyword, request.SearchCurrentCompanyOnly, request.QueryResultSettings);

                return(new EntityDataServiceResponse <GlobalCustomer>(globalCustomers));
            }