i want to make a query::::
plz help


i have a table:::: temp

A B
1 a
2 a
3 a
4 a
5 b
6 b
7 b
8 a
9 a
10 b
11 b


i want the output to be


From to B
1 4 a
5 7 b
8 9 a
10 11 b




so plz help me......i m not getting the answer




i have made like this


select min(A),max(A),B from temp group by B;

but it is giving me

1 9 a
5 11 b