I think you'd have to keep your own counter. Update it every time someone successfully opens the table, and when someone closes it.

I'd suggest having a function to open and close tables. The open function can add 1 to an array element when it opens a table and the close function can subtract 1 when a table closes. Both can do maintenance on the array (ie- redimensioning etc).

Alan

>Dear friends,
>
>
>How to find how many users are using a table in an exclusive off mode?
>
>Any ideas ?
>
>Aashish