Applying user-defined aggregate (UDA) functions

Referring back to the user-defined aggregate average(), retrieve the average of the column cyclist_time_sec from a table.

  1. List all the data in the table.

     SELECT * FROM cycling.team_average;
  2. Apply the user-defined aggregate function average() to the cyclist_time_sec column.

    SELECT average(cyclist_time_sec) FROM cycling.team_average WHERE team_name='UnitedHealthCare Pro Cycling Womens Team' AND race_title='Amgen Tour of California Women''s Race presented by SRAM - Stage 1 - Lake Tahoe > Lake Tahoe';

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