How query with data functions in group by ca be optimized?

Create Index on fee_type column in student_fee_collections and recheck the output of Explain Query . And update the same in your question.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.