SELECT DISTINCT billno from yourtable

>hi all,
>i have a table with field billno evry billno have many items as under
>

>billno itemno
>1         1
>1         2
>1         3
>2         1
>2         2
>2         3
>3         1
>3         2
>3         3
>.         .
>.         .
>
>

>i need help to see at mylist billno as 1,2,3,4...just one time
>thanks