I have following values in my table:
ABC ABC1 ABC2 ABC3 and so on... ABC11 ABC12 ABC13 and so on.. ABC20 ABC21 ABC22 and so on..
So basic
(based on answers from @shenhengbin and @EchO to this question)
The following is what I call a "clean hack". Assuming you are ordering on column Col1:
Col1
ORDER BY LEN(Col1), Col1
It is a hack, although I'd personally feel proud using it.