Function to Calculate Compound Interest
  create or replace function CI_Calculator ( p_principal number                                            , p_tenure number                                            , p_compound_freq number                                            , p_roi number) return number is  begin    -- Formula to calculate compound interest    -- Principal * ( 1 + (rate of interest% / n ) )^nt       return round (p_principal * power( 1 + ((p_roi/100) / p_compound_freq ) , p_tenure ), 2 );   end CI_Calculator;    select ci_calculator (p_principal      => 100                        ,p_tenure     ...