Create this UDT somewhere:
create function <your_util_library>.epoch_time(seconds integer default null)
returns integer
language c
external name 'QSYS/QC2UTIL1(time)'
parameter style general with nulls
no sql
not fenced
not deterministic
no external action;
And then you can use it like this:
select <your_util_library>.epoch_time() from sysibm.sysdummy1
Coy Krill
Core Processing Administrator/Analyst
Washington Trust Bank
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Krill, Coy
Sent: Tuesday, November 10, 2015 15:04
To: Midrange Systems Technical Discussion
Subject: RE: DB2: Generating epoch time
Importance: Low
Scratch all that, the TIMESTAMPDIFF is returning an estimate even when requesting seconds as the interval, so this results in the epoch time being off by a two full weeks on my box. Best bet might be a UDF wrapper around the C time() runtime function.
I vaguely remember TIMESTAMPDIFF biting me the same way every few years when I try to use it again as I forget it's an estimate.
Coy Krill
Core Processing Administrator/Analyst
Washington Trust Bank
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Krill, Coy
Sent: Tuesday, November 10, 2015 14:27
To: Midrange Systems Technical Discussion
Subject: RE: DB2: Generating epoch time
Importance: Low
Forgot you have to add in your utc time offset in seconds as well. This would be better as a UDF since you have to parse that up into hours and minutes on the off chance you're in a timezone that uses offsets that also have minutes.
Coy Krill
Core Processing Administrator/Analyst
Washington Trust Bank
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Krill, Coy
Sent: Tuesday, November 10, 2015 13:51
To: Midrange Systems Technical Discussion
Subject: RE: DB2: Generating epoch time
Importance: Low
timestampdiff(2, cast(current_timestamp-cast('1970-01-01 00:00:00.000000' as timestamp) as char(22)))
Coy Krill
Core Processing Administrator/Analyst
Washington Trust Bank
-----Original Message-----
From: MIDRANGE-L [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of rob@xxxxxxxxx
Sent: Tuesday, November 10, 2015 13:09
To: midrange-l@xxxxxxxxxxxx
Subject: DB2: Generating epoch time
Importance: Low
Is there some way to generate the epoch time in SQL?
I tried
values generate_unique()
but that was blank.
And I tried the ancient
select generate_unique() from sysibm.sysdummy1 but that worked the same
I took a wag at
values cast(generate_unique() as char(30)) but that wasn't any better.
This was a little different
values generate_unique(), timestamp(generate_unique()) ....+....1....+....2....+.
VALUES
++++++++++++++++++++++++++
2015-11-10-21.04.02.786923
******** End of data ***
Before I never even got the plus signs.
I was pointed to this epoch site by IBM
http://www.epochconverter.com/?cm_mc_uid=04943014784214468222669&cm_mc_sid_50200000=1447188011
Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com
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