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I have just 3 columns Station, Datee, Valuee(TEMPERATURE). 50 years of daily temperature. How to find longest period with negative temperature with MS SQL query?

  • Station Datee Valuee
  • London 1/1/1961 2.4
  • London 1/2/1961 3.2
  • London 1/3/1961 9.8
  • London 1/4/1961 9.8
  • London 1/5/1961 5
  • London 1/6/1961 2.2
  • London 1/7/1961 1.1
  • London 1/8/1961 2.6
  • London 1/9/1961 2.4
  • London 1/10/1961 1.7
  • London 1/11/1961 0.3
  • London 1/12/1961 1.7
  • London 1/13/1961 -1.4
  • London 1/14/1961 -2.3
  • London 1/15/1961 -1.8
  • London 1/16/1961 -1.2
  • London 1/17/1961 -1.6
  • London 1/18/1961 -8.4
  • London 1/19/1961 -10.1
  • London 1/20/1961 -8.5
  • London 1/21/1961 -4.2
  • London 1/22/1961 -0.8
  • London 1/23/1961 4
  • London 1/24/1961 3
  • London 1/25/1961 0.8
  • London 1/26/1961 -3.4
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