Hi
I have a problem.
I have two tables...table1 and table2.
table1 has the column latitude and sno(serial number) and table2 has the column lat and sno(serial number) .
i have to find the difference of all the values in column latitude from table 1 with all the values in column lat from table 2 and place it in a new table result having column difference

i have written this code but i am getting error as...