Question

I want to take the “Created” time difference between stalled(NewValue) and stalled(OldValue) for the particular ticket_id

Note : This is my first post.I can’t attach the pic due to some restriction.

+-----------+----------+----------+---------------------+
| Ticket_id | OldValue | NewValue | Created             |
+-----------+----------+----------+---------------------+
| 20100     | new      | wip      | 2012-10-01 07:38:18 |
| 20100     | wip      | stalled  | 2012-10-01 10:12:14 |
| 20100     | stalled  | wip      | 2012-10-01 22:09:39 |
| 20100     | wip      | open     | 2012-10-02 01:03:26 |
| 20100     | open     | stalled  | 2012-10-02 01:03:26 |
| 20100     | stalled  | wip      | 2012-10-03 06:55:42 |
| 20100     | wip      | open     | 2012-10-03 19:24:53 |
| 20100     | open     | stalled  | 2012-10-03 19:24:53 |
| 20100     | stalled  | open     | 2012-10-04 19:28:48 |
| 20100     | open     | resolved | 2012-10-04 21:01:17 |
+-----------+----------+----------+---------------------+

Answer 1

Use something like:

SET @dte:=CURRENT_DATE();
SELECT DATEDIFF(Created, @dte),@dte:=Created FROM table ORDER BY Created

This will show you the difference between the two values (except for the first record). You could add an extra IF or just don’t show the first date.