Re: "Date" fields

First of all, "believe that the customer's requirement" is a scary 
thought.  Have you suggested true date fields?
I suppose you could always build views or logical files that convert the 
zoned dates into real dates.  And just use these for all your 
applications.

Others have spoken their wisdom regarding sorting.  And it's sage advice.

Think also of stuff like the following sql and how it may affect your 
decision.

CREATE TABLE QTEMP/LANDESS (FAKEDATE NUMERIC (8 , 0) NOT NULL WITH
DEFAULT, FAKETIMESTAMP NUMERIC (14 , 0) NOT NULL WITH DEFAULT) 

INSERT INTO QTEMP/LANDESS VALUES(20050505, 20050505120101)

select 
  CAST((SUBSTR(CHAR(FAKEDATE),1,4) CONCAT '-' CONCAT
        SUBSTR(CHAR(FAKEDATE),5,2) CONCAT '-' CONCAT
        SUBSTR(CHAR(FAKEDATE),7,2)) AS DATE), 
  CAST(CHAR(FAKETIMESTAMP) AS TIMESTAMP) 
FROM QTEMP/LANDESS 
....+....1....+....2....+....3....+....4.
CAST function  CAST function 
 2005-05-05    2005-05-05-12.01.01.000000
********  End of data  ******** 

I thought it was freaking amazing that SQL found it easier to convert the 
timestamp than it was to convert a date.
This did NOT work:
select 
  CAST(CHAR(FAKEDATE) AS DATE), 
  CAST(CHAR(FAKETIMESTAMP) AS TIMESTAMP)
FROM QTEMP/LANDESS 

Time for another DCR???

Rob Berendt
-- 
Group Dekko Services, LLC
Dept 01.073
PO Box 2000
Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





"Steve Landess" <sjl_abc@xxxxxxxxxxx> 
Sent by: midrange-l-bounces@xxxxxxxxxxxx
05/09/2005 10:21 AM
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Subject
"Date" fields






Date field question...

There may be a few exceptions, but in JDE all date fields are generally 
defined as a 6-digit julian format - 105001, for example, indicates 
1-January-2005.  099001 indicates 1-January-1999.  (The '1' prefix 
indicates that the date is in the 21st century, a '0' prefix indicates 
20th century).

Let's say you're defining a date/timestamp field (14,0 Zoned) -or- a date 
field (8,0 Zoned) in a non-JDE data base (DB2).  Is our industry, is there 
a  standard for populating these types of field?  I have an idea as to how 
they should be populated, but would like another's opinion. 

Please do not confuse my question with the "date" data type that is now 
available.  I believe that the customer's requirement is to have this 
field defined as a numeric field...

Regards,

Steve


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