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hi,
i am coding an application which needs to extract more than 400 symbols' volume data, but i met a problem, could anybody help me?
The application is like that: first of all, i have stored those 400+ symbols in Database and set a Timer in my code(VB), every 15 seconds, it will get one symbol from DB and request history, waiting for eSignal's response. ( i believe it is not belong to multi-request, right? )
It works well but not perfect sometimes, because some symbols ( about 2-3%, maybe ) will have no data. So my question is: Is 15 seconds enough? or can anybody tell me the suitable time?
Thank you a lot!
i am coding an application which needs to extract more than 400 symbols' volume data, but i met a problem, could anybody help me?
The application is like that: first of all, i have stored those 400+ symbols in Database and set a Timer in my code(VB), every 15 seconds, it will get one symbol from DB and request history, waiting for eSignal's response. ( i believe it is not belong to multi-request, right? )
It works well but not perfect sometimes, because some symbols ( about 2-3%, maybe ) will have no data. So my question is: Is 15 seconds enough? or can anybody tell me the suitable time?
Thank you a lot!