When I am programming in the Designer, the Easy Chart runs okay. But when running on the Client, the chart will get error of database query.
This is the diagnostic I run on the Easy Chart.
PenSQLQuery “SELECT t_stamp, pal2_generator_active_power_total FROM nigbu_load WHERE t_stamp >= ? ORDER BY t_stamp”: Good
I don’t understand where the t_stamp get the ? value.
Screenshot was on the Designer.
Screenshot was on the Client
Thank you very much. Any help would be much appreciated.