How to extract a Date from an SQLDateTime object in Mathematica

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Published on 2010-03-18T15:52:56Z Indexed on 2010/03/18 16:21 UTC
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I am trying to do a plot of a time series with DateListPlot. I want to feed it a time series I obtain from an SQL database. When I retrieve the time series the list is composed of SQLDateTime entries that DateListPlot doesn't understand.

In[24]:= t=SQLExecute[conn, "select timestamp,value from timeseries order by timestamp asc"]

Out[24]={{SQLDateTime[{2010,1,1}],12.3},{SQLDateTime[{2010,1,2}],12.51}}

Doesn't work: In[25]:= DateListPlot[t]

DateListPlot requires a Date tuple and doesn't understand SQLDateTime. What can I do?

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