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Aggregate Functions

  

      

      EMP
      

      

      ID      
      Name    
      Country 
      Salary 
      

      

      1
      Vijay
      India
      6000
      

      

      2
      Bill
      USA
      8000
      

      

      3
      Kris
      France
      3000
      

      

    
SELECT

      SUM (Salary)            as      'SUM',
      AVG (Salary)            as      'AVG',
      MIN (Salary)            as      'MIN',
      MAX (Salary)            as      'MAX',
      COUNT(*)                as      'COUNT(*)',
      COUNT_BIG(Salary)       as      'COUNT_BIG',
      COUNT(DISTINCT Country) as      'COUNT'

FROM EMP
    
      

      
Output

      


      SUM
      AVG
      MIN
      MAX
      COUNT(*)
      COUNT_BIG
      COUNT




      17000
      5666
      3000
      8000
      3
      3
      3