SQL fejl?

sql = \"select dato, antal, max(antal) as maximum from info where sideID = \'\"& request.querystring(\"id\") &\"\' ORDER BY dato LIMIT 0,30\"

Denne SQL giver denne fejl:

[TCX][MyODBC]Mixing of GROUP columns (MIN(),MAX(),COUNT()...) with no GROUP columns is illegal if there is no GROUP BY clause

PLZ HELP ME !!!

dna