I am trying to query the data set below for the data_value for the data_id of the recent data_date.
So for data_id 18554 the recent data_date will be 2/8/2016 18:40 and its data_value will be 29504.76
And for data_id 18555 the recent data_date will be 2/8/2016 18:40 and its data_value will be -90909090909
Code:
data_id data_name data_date data_value 18554 traffic_in 2/8/2016
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