dao.insert(record);
Pkblobs newRecord = new Pkblobs();
newRecord.setId(new Integer(3));
newRecord.setBlob2(TestUtilities.generateRandomBlob());
dao.updateByPrimaryKeySelective(newRecord);
Pkblobs returnedRecord = dao.selectByPrimaryKey(new Integer(3));
assertNotNull(returnedRecord);
assertEquals(record.getId(), returnedRecord.getId());
assertTrue(TestUtilities.blobsAreEqual(record.getBlob1(), returnedRecord