RE: COALESCE not working as I expected

Thank you. I just reread the doc to see where I missed that piece of info.

-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of Peter Dow
Sent: Friday, April 10, 2020 6:19 PM
To: midrange-l@xxxxxxxxxxxxxxxxxx
Subject: Re: COALESCE not working as I expected

None of that documentation says what happens if the string_expression does not represent a valid number.

It does say that if any argument of TO_NUMBER is null, the result will be null.

On a v7r2 box,

values(to_number('0045E1020040'))

....+....1....+....2....+....3....+....4..
VALUES
++++++++++++++++++++++++++++++++++++++++++
******** End of data ********


values(coalesce(to_number('0045E1020040'),0))

....+....1....+....2....+....3....+....4..
VALUES
++++++++++++++++++++++++++++++++++++++++++
******** End of data ********



On 4/10/2020 2:46 PM, Rob Berendt wrote:

Actually to_number is plainly document in the database section of the IBM i Knowledge Center. Get into the habit of starting there. Bookmark the site.
Basically it says it is a duplicate of DECFLOAT_FORMAT.
https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_74/db2/rbafzscat
onumber.htm

One could also look up valid floating decimal formats there although one may have to research further in that same center for that.

I just not feeling activating the VPN to try out some samples.


Rob Berendt

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