Sort CSV file by multiple columns using the "sort" command

I have a CSV-like file, and I would like to sort it by column priority, like "ORDER BY" in SQL. For example, given the following rows,

3;1;2
1;3;2
1;2;3
2;3;1
2;1;3
3;2;1

If "ORDER BY" were column2, column1, column3, the result would be:

2;1;3
3;1;2
1;2;3
3;2;1
1;3;2
2;3;1

I'd like to know how to get this same result using the sort command on Unix.