Hi.

SELECT {[Customers].[All Customers].[Canada]} ON COLUMNS,
{StrToSet(CStr(LookupCube("Sales", "SetToStr({[Product].Members})")))} ON
ROWS
FROM [Sales]

Does anyone have any idea why the above query fails with an "Unknown
internal error"? When I replace the "[Product].Members" string with
"[Time].Members", it works fine.

The following query, which I think is quite similar, works fine:

SELECT {[Customers].[All Customers].[Canada]} ON COLUMNS,
{StrToSet("[Product].Members")} ON ROWS
FROM [Sales]

Thanks.

I believe this happens because the list of product members exceeds the
maximum string length that can be handled by "SetToStr", "LookupCube", or
both.
This is supported by testing your query replacing [Product].Members by
Head([Product].Members, n).
Up to n = 344 this works, then it breaks.
At this point , the string length should be over 32K, which is a likely limit.
HTH,
Brian
www.geocities.com/brianaltmann/olap.html
"John" wrote: