Re: AW: Embedded SQL formatting dates

First, let me wish a Happy new year to all, may the coming days bring good
things to you and your families.

Booth,

There is an UDF written by, IIRC, Alan Campin that allows you to convert
from numeric "date" fields to "true" date fields. The UDF's name is iDate.
Alan's is:

WWW. Think400.dk

HTH,

Sent from my Nexus 7 tablet. Please excuse my brevity.
On Jan 1, 2016 12:47, "Booth Martin" <booth@xxxxxxxxxxxx> wrote:

I have said the question badly. I understand that a date field knows what
it is; I do not to tell it. But it does need to know what is being fed
into it. That is the place I am at with this issue.

I have a field in a data file which is 7/0 and is cyymmdd. I want to use
it as a date field so I can get the week. Presently that is being done by
substringing the digits and replacing the leading "1" with a "20". That
seems cumbersome to me but maybe thats the only way to do it?

On 1/1/2016 10:58 AM, Birgitta Hauser wrote:

SQL does not care about date formats. A date is only a numeric value and
date formats are only used to make this scaliger no readable.
If you debug your code and fetch any date value into a date field. The
format of the date that is displayed depends on the date format of the RPG
variable.
If you want to convert or display the date into any other format, it has
to
be converted into a character version, by using one of the scalar
functions
CHAR() or VARCHAR_FORMAT().

Example:
Exec SQL Values(Char(Current_Date, USA),
VarChar_Format(Current_Date, 'MM/DD/YY'),
VarChar_Format(Current_Date, 'MMDDYYYY'))
into :HostDateMMDDYYYY, :HostDateMMDDYY;

If you need to convert a date into a numeric representation in the format
YYYYMMDD, this can be done since release 7.2 with one of the scalar
functions DEC(), Integer() or BigInt():

Example:
Exec SQL Values(Dec(Current_Date, 8, 0),
Int(Current_Date),
BigInt(Current_Date))
Into :HostDateDec, :HostDateInt, :HostDateBigInt;

Mit freundlichen Grüßen / Best regards

Birgitta Hauser

"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"

-----Ursprüngliche Nachricht-----
Von: RPG400-L [mailto:rpg400-l-bounces@xxxxxxxxxxxx] Im Auftrag von Booth
Martin
Gesendet: Thursday, 31.12 2015 20:48
An: RPG programming on the IBM i / System i
Betreff: Embedded SQL formatting dates

Birgitta tantalized me a bit ago. SQL does so much so well.

So far I have not found a way to set the output format for a date. This
does not work:

exec sql select date(:WRKDAT)
into :MDYYDATE "mm-dd-yyyy" from SYSIBM/SYSDUMMY1;

(As an aside, it seems to need SYSIBM/SYSDUMMY1. At least I am #1, eh?
Or does that mean something else?)
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