Consider a table like
debit credit code
-----------------------------
0 10 5
5 0 3
0 11 2
0 15 1
7 0 6
6 0 2
5 0 1
I need to generate a result set like this that debit come first and then ordered by code column:
debit credit code
----------------------------
5 0 1
6 0 2
5 0 3
7 0 6
0 15 1
0 11 2
0 10 5