Error in Calculating Floor() value in SQL

• yensin 20332

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  Points: 53

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  September 5, 2011 at 9:45 pm

  #390343

  Hi all,

  I need to calculate numbers of money notes needed for salary preparation.

  I have problem with the last column, i.e. USD1. The value return is 3 instead of 2.

  SELECT FLOOR(2.78) ==> return 2.

  I am not sure why my following code return 3.

  DECLARE @GrossPay Decimal(12,2)

  SET @GrossPay = 132.78

  SELECT @GrossPay,

  FLOOR(@GrossPay/100) AS USD100,

  FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50) AS USD50,

  FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20) AS USD20,

  FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50 - (FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20))*20)/10) AS USD10,

  FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50 - (FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20))*20 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50 - (FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20))*20)/10))*10)/5) AS USD5,

  FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50 - (FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20))*20 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50 - (FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20))*20)/10))*10-(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50 - (FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20))*20 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50 - (FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100 -(FLOOR((@GrossPay - FLOOR(@GrossPay/100)*100)/50))*50)/20))*20)/10))*10)/5))*5)/1) AS USD1

  Hope that anyone can help me with this.

  Thanks in advance!