JDBC Using GetColumns

ResultSet WSrc = WSc.getColumns(... "UnknownTable" ...);
// getColumns() will generate a query to 
// the system catalogs and possibly a join
// that must be prepared, executed, and produce
// a result set
...    
WSrc.next();
string Cname = getString(4);
...    
// user must retrieve N rows from the server 
// N = # result columns of UnknownTable
// result column information has now been obtained