How to determine the difference among dates in the same column?

Posted by Vera on Stack Overflow See other posts from Stack Overflow or by Vera
Published on 2010-04-25T14:35:13Z Indexed on 2010/04/25 14:43 UTC
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mysql

How to determine the difference among dates of birth?

+----------+----------+------------+
| id | name | birth |
+----------+----------+------------+
| 00001 | Claws | 2010-04-17 |
| 00002 | Claws | 2010-01-31 |
| 00003 | Claws | 2009-11-31 |
| 00004 | Claws | 2009-09-31 |
| 00005 | Claws | 2009-07-31 |
| 00006 | Claws | 2008-10-31 |
+----------+----------+------------+

I would like to obtain this:

+----------+----------+------------+------------------------------------------+

| id | name | birth | diff |
+----------+----------+------------+------------------------------------------+
| 00001 | Claws | 2010-04-17 | diff (id1-id2) = 2010-01-31 - 2010-04-17 |
| 00002 | Claws | 2010-01-31 | diff (id2-id3) = 2010-01-31 - 2009-11-31 |
| 00003 | Claws | 2009-11-31 | diff (id3-id4) = 2010-01-31 - 2009-09-31 |

If possible, ORDER BY diff DESC

Thank you for helping

Vera

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