Jdbc slow on sybase on solaris

Question

Hi there,
I have a very simple query which selects all the rows from a very large table (50,000,000 rows).
When I execute this query using ISQL on a remote client, the results come back relatively quickly (~5 seconds for 100,000 rows). When I execute the same query using JDBC it takes approximately 2 minutes to return each 100,000 rows.
I don't experience this problem running against Sybase on Linux or Oracle.
Any help would be greatly appreciated.
Thanks!

Answer 1

Yes, I have a stripped down test program and it does create objects for the results; however, the same code runs very quickly if I run against Sybase on Linux. I have logging which tells me how long it takes to iterate over the results... Here is the code...
Thanks for any insights you might have about this.
               Connection connection = DriverManager.getConnection(url, user, password);
               connection.setTransactionIsolation(Connection.TRANSACTION_READ_UNCOMMITTED);
               System.out.println("isolation: " + connection.getTransactionIsolation());
              Statement stmt = connection.createStatement(ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY);
              stmt.execute("select jobId, startTime, endTime, finishToStartLatency from JobRun");
                 ResultSet result = stmt.getResultSet();
                 System.out.println("Fetch size: " + result.getFetchSize());
                 if (url.indexOf("useCursors") != -1) {
                      result.setFetchSize(10*1000);
                      System.out.println("Updated fetch size: " + result.getFetchSize());
                 int count=0;
                 for (; result.next() && count < READ_LIMIT; count++) {
                   String jobId = result.getString(1);
                   Object startTime = result.getObject(2);
                   Object endTime = result.getObject(3);
                   Object finishStartLatency = result.getObject(4);
                   if (count % LOGGING_INTERVAL == 0) {
                        System.out.println(MessageFormat.format("{0,date,yyyy/MM/dd HH:mm:ss.SSS z} Read {1} runs.", new Object[] { new java.util.Date(), new Integer(count) }));
                        logMemory();
              }