I have a table that looks something like below without the rank field. I want to put that rank field as it is in the table below. How can I achieve it in MySQL?
#   name    aa   bb   cc   total   |  rank
1    name1   20   20   30     70   |   1
2    name2   10   20   30     60   |   2
3    name3   20   10   25     55   |   3
4    name4   20   20   30     70   |   1
5    name5   10   10   20     40   |   4
 
     
     
    