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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Timestamp does npot work

Timestamp does npot work

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kuzman

Posted: Thu Sep 02, 2010 6:09 am Post subject: Timestamp does npot work

Apprentice

Joined: 24 Aug 2010
Posts: 27

Hi,

I would like to subtract two timestamp but it returns null:
DECLARE T2 TIMESTAMP;
SET T2 = CURRENT_TIMESTAMP;
DECLARE T1 TIMESTAMP;
SET T1 = CAST('2010-01-01 12:00:00' AS TIMESTAMP);
SET OutputRoot.XMLNSC.DAY_ELAPSED = (T2-T1) DAY;

The OutputRoot.XMLNSC.DAY_ELAPSED is null ???

I have finded esql example, that also don't work:
Declare D Interval (CURRENT_DATE - Date '2010-01-01') DAY;
Declare H Interval (CURRENT_TIME - Time '12:00:00') HOUR TO SECOND;

D and H are also null! ??

Br,

Zs

Vitor

Posted: Thu Sep 02, 2010 7:03 am Post subject: Re: Timestamp does npot work

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

kuzman wrote:

I have finded esql example, that also don't work:

Finded where? It looks a bit odd.

I'd consider something more like this (untested) snippet:

Code:

SET OutputRoot.XMLNSC.DAY_ELAPSED = EXTRACT DAY FROM(T2-T1)

Also I don't think you can initialise an INTERVAL data type like this:

Code:

Declare D Interval (CURRENT_DATE - Date '2010-01-01') DAY;
Declare H Interval (CURRENT_TIME - Time '12:00:00') HOUR TO SECOND;

You need to look up CAST, INTERVAL & EXTRACT in the InfoCenter. There are some code snippits there which might be useful.
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