Query SQL database using JSF problem!! Using CachedRowSet

I'm using JSF and want to query data from SQL by using CachedRowSet like this,
rowset.setCommand("SELECT * FROM dbo.SomeTable WHERE SomeField='"+ xyz +"'");
then check if the record does exist by using
*if(rowset.next()) {/ do something with the retrieved data}*
but i get SQLException telling that execute() never called.
Anyone can tell me what i'm missing? or is there any better way to check the existence of a record ?
Thanks in advance :-)

Hi grzegorz,
1. If your sap application server is unix/aix
(and not a microsoft OS),
2. then this kind of secondary databse connection,
   to MS SQL (which is microsoft system),
   is at present not possible.
(BCOS the required system files, for such
   cross - platform connection is not delivery by sap)
regards,
amit m.

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