db2 timestamp

dear experts

I have column in my table CUSTOMER with column 'UPDATED' which contains data like

9/23/2015 8:28:59.204799 AM
9/23/2015 8:28:59.280789 AM
9/23/2015 8:43:25.738472 AM
9/23/2015 8:43:25.764559 AM
9/23/2015 8:54:17.638960 AM
9/23/2015 8:54:17.677960 AM
9/23/2015 8:54:51.907339 AM
9/23/2015 8:54:51.907456 AM
9/23/2015 9:33:59.198716 AM
9/23/2015 9:39:41.513715 AM
9/23/2015 10:36:53.743423 AM
9/23/2015 1:09:44.151856 PM
9/23/2015 1:15:19.834045 PM
9/23/2015 1:58:08.405602 PM
9/23/2015 4:01:38.369661 PM

Am trying to get data after 1pm on 9/23/2015

select * from CUSTOMER where UPDATED > '2015-9-23 1:00:00.000000'

but it brings data after 1AM and not 1PM.

Any ideas?
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Kent OlsenDBACommented:
Hi Roy,

DB2 has all kinds of date and time functions that aren't in other engines.  :)

Use the HOURS () function.  To get all of the rows that were recorded during the afternoon this calendar year, use a filter like this:

WHERE date(YourTimeStamp) >= '01/01/2015'
  AND hours (YourTimeStamp) >= 12

Good Luck!
royjaydAuthor Commented:
   Does this look ok?
 select * from CUSTOMER where date(UPDATED) > '2015-9-23' and hours(UPDATED) >= 13

Open in new window

13 represents 1pm.
   I am using Db2 9.1 version and it complains
   No authorized routine named HOURS of type funciton having compatible arguments was found.
Kent OlsenDBACommented:
Sorry.  fat fingers here...

Use HOUR, not HOURS.

select * from CUSTOMER where date(UPDATED) > '2015-9-23' and hour(UPDATED) >= 13

If you want all updates after that time, you'll need to accept all values after that date and the afternoon values for the start date.

select *
where date(UPDATED) > '2015-9-23'
   or (date (updated) = '2015-9-23' and hour(UPDATED) >= 13)

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Dave FordSoftware Developer / Database AdministratorCommented:
This would be simpler:

select * from CUSTOMER where UPDATED > '2015-09-23-'
royjaydAuthor Commented:
thanks all
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