Division ( / ) not giving my answer in postgresql

Question

I have a table software and columns in it as dev_cost, sell_cost. If dev_cost is 16000 and sell_cost is 7500

Answer 1

You can cast integer type to numeric and use ceil() function to get the desired output

The PostgreSQL ceil function returns the smallest integer value that is greater than or equal to a number.

SELECT 16000::NUMERIC / 7500 col 
      ,ceil(16000::NUMERIC / 7500) 

Result:

col                  ceil 
------------------   ---- 
2.1333333333333333     3    

So your query should be

select ceil(dev_cost::numeric/sell_cost) 
from software