Re: Converting a numeric date value to a DATE in SQL

There is a huge difference between
"need to get permission"
and
"not an option"
If there isn't, then that reflects very badly mostly on the person who has
to ask permission. Smacks of cowardice, or, totally ineffective
communication skills. Don't mean to be harsh although I can see how it
comes off that way.

Alan includes the error handling.

If you download Alan's tool, print off the source, and rekey it by hand,
does that count as installing a third party tool, or applied research?

Rob Berendt
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From: Charles Wilt <charles.wilt@xxxxxxxxx>
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Date: 09/09/2014 12:35 PM
Subject: Re: Converting a numeric date value to a DATE in SQL
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



I fail to see how a customer would be ok with you writing your own version
of iDate (and billing them for it) as opposed to simply loading the
open-source iDate.

For that matter you could simply load the source and compile it yourself
and thus you haven't "installed" anything.

Charles

On Tue, Sep 9, 2014 at 12:13 PM, Jeff Young <jyoung0950@xxxxxxxxx> wrote:

Alan,
Unfortunately, iDate is not an option for this customer (need to get
permission to install *any* 3rd party software -including- utilities)
I have tried to use SELECT DATE(field) from my file (where field is
20140905), but SQL did not like that and it returned ++++++++.
Is there an easy way to do this?



Jeff Young
Sr. Programmer Analyst

On Tue, Sep 9, 2014 at 11:46 AM, John Yeung <gallium.arsenide@xxxxxxxxx>
wrote:

On Tue, Sep 9, 2014 at 10:38 AM, Jeff Young <jyoung0950@xxxxxxxxx>

wrote:

Using SQL, how do I convert a numeric value of a database field in

ISO

date

format (ccyymmdd) to a DATE data type for comparison?
I need to select all records with a date that is equal to a value

input

by

the user.

I think we all agree that the "right" way to do dates is with date
fields. However, if all you need is to check for equality, probably
the fastest thing to do is to convert your input to numeric ISO and do
a direct comparison with that.

And in your case, even if you had to check for earlier-than,
later-than, or between, you could still use the numeric ISO dates
as-is (this would not be the case for MDY, USA, or EUR numeric-field
dates).

That said, it is probably still worth having iDate. :)

John Y.
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