• If a row contains a missing or null value, it is not factored into the calculation. If the entire column contains no values, the function returns a null value.
• When used in a pivot transform, the function is computed for each instance of the value specified in the group parameter. See Pivot Transform.

• The approximate percentile functions utilize a different algorithm for efficiently estimating quantiles for streaming and distributed processing, depending on the running environment where the function is computed. 

  Tip
  Tip: Approximation functions are suitable for larger datasets. As the number of rows increases, accuracy and calculation performance improves for these functions.

  
  
  

  • For an exact calculation of this function, see MEDIAN Function.

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