Index on date(nYear,code,1) tag myTag

Tariq,
Why are you creating structures like this always? For example this structure could be represented by a single date field in your table.
Cetin

>Dear Experts
>
>Table1 has Three fields as
>
>code n(2)
>cmon c(3)
>nyear n(4)
>
>and data in fields is as
>
>code--cmon--year
>10----Oct---2006
>3-----Mar---2007
>11----Nov---2006
>7-----Jul---2006
>6-----Jun---2007
>12----Dec---2006
>2-----Feb---2007
>8-----Aug---2006
>5-----May---2007
>1-----Jan---2007
>9-----sep---2006
>4-----Apr---2007
>
>Now I Want to sort data as
>
>7-----Jul---2006
>8-----Aug---2006
>9-----sep---2006
>10----Oct---2006
>11----Nov---2006
>12----Dec---2006
>1-----Jan---2007
>2-----Feb---2007
>3-----Mar---2007
>4-----Apr---2007
>5-----May---2007
>6-----Jun---2007
>
>Months are from 7 to 12 and then 1 to 6
>
>What index expression should I apply
>
>Please help