public void setCommand(String cmd) throws SQLException {
         throw new UnsupportedOperationException();
    }
Sets this <code>CachedRowSetImpl</code> object's command property
to the given <code>String</code> object and clears the parameters,
if any, that were set for the previous command.
<P>
The command property may not be needed
if the rowset is produced by a data source, such as a spreadsheet,
that does not support commands. Thus, this property is optional
and may be <code>null</code>.

@param cmd a <code>String</code> object containing an SQL query
           that will be set as the command; may be <code>null</code>
@throws SQLException if an error occurs
src/main/java/org/replicadb/rowset/sun/rowset/internal/SyncResolverImpl.java