Question

I have a table with a timestamp field including these values:

2012-03-12 12:53:34
2012-03-12 12:54:11 
2012-03-12 01:02:37
2012-03-12 01:03:04
2012-03-12 01:03:46

My query is the following

SELECT * FROM 
(Select MESSAGE_OF_USER,MESSAGE_TIME as time,CONVERSATION_ID 
 from poem_authors_messages 
 where (CONVERSATION_ID='2' or CONVERSATION_ID='1') and 
       MESSAGE_TIME>'2012-03-12 12:53:34' 
 ORDER BY time DESC) poem_authors_messages 
ORDER BY time ASC

Notice the time. It should give me these results

2012-03-12 12:54:11 
2012-03-12 01:02:37
2012-03-12 01:03:04
2012-03-12 01:03:46

but instead i get

2012-03-12 12:54:11

why is this happening?

Any help appreciated.

Answer 1

3 of your times are AM and not PM. This means that they’re not greater than your filter time…

                     |  MESSAGE_TIME>'2012-03-12 12:53:34'
---------------------+--------------------------------------
2012-03-12 01:02:37  |  No
2012-03-12 01:03:04  |  No
2012-03-12 01:03:46  |  No
2012-03-12 12:54:11  |  Yes
2012-03-12 13:02:37  |  Yes
2012-03-12 13:03:04  |  Yes
2012-03-12 13:03:46  |  Yes