I have below table
+--------------+-----------+
| serial no | isNew |
+--------------+-----------+
| 630401A | 2014 |
| 630401B | 2014 |
| 630401A | 2013 |
| 630401B | 2013 |
| 630401C | 2013 |
+--------------+-----------+
Now the thing is I want to select records as per isNew column. As you can see that serial no is same and isNew is different in 2 cases and in on case there is only record for serial number.
So I want output like
+--------------+-----------+
| serial no | isNew |
+--------------+-----------+
| 630401A | 2014 |
| 630401B | 2014 |
| 630401C | 2013 |
+--------------+-----------+
I hope I am very clear to display my table and result I want.
Thanks for your help in advance!