I was listening to Pink Floyd when I read that and started to hallucinate.

>Here's an SQL-SELECT one for you,
>
>How would I get this data:
>

>f1	f2
>----------
>0	1
>1	2
>2	3
>2	5
>1	4
>4	6
>6	7

>Into somehting like this:
>
>01
>012
>0123
>0125
>014
>0146
>01467
>
>using a single SQL SELECT command? I can do it using DO WHILEs or SCANs and all, but am just looking for other options.