RE: Date Variables in CL

[CWilt@xxxxxxxxxxxx]

Rob,

To be honest, I usually to the conversion from the numeric file field to
date as you suggest.

However, the problem with this is that it the file has an index on the
numeric date field, it won't be used in that case.

Whereas, if you convert that date to a numeric, the index could be used.


Charles Wilt
iSeries Systems Administrator / Programmer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
 

> -----Original Message-----
> From: rob@xxxxxxxxx [mailto:rob@xxxxxxxxx]
> Sent: Thursday, October 28, 2004 4:56 PM
> To: Midrange Systems Technical Discussion
> Subject: RE: Date Variables in CL
> 
> 
> I tried playing around with this a little also.  Although I'd 
> take Charles 
> suggestion and modify it slightly
> select * from vinlog
> where days(current date) - days(CvtNumericToDate(IJDATE)) > 180
> 
> Sql seems to have a real problem casting a numeric date into 
> a date field. 
>  Hence the UDF suggestion.
> 
> Rob Berendt
> -- 
> Group Dekko Services, LLC
> Dept 01.073
> PO Box 2000
> Dock 108
> 6928N 400E
> Kendallville, IN 46755
> http://www.dekko.com
> 
> 
> 
> 
> 
> CWilt@xxxxxxxxxxxx 
> Sent by: midrange-l-bounces@xxxxxxxxxxxx
> 10/28/2004 03:49 PM
> Please respond to
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> Subject
> RE: Date Variables in CL
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> 
> Tim,
> 
> Take a look at the CVTDAT command.
> 
> If you decide to use SQL, you'd want to write a CvtDateToNumeric User
> Defined Function (UDF)
> 
> select * from VINLOG
> where IJDATE <= CvtDateToNumeric(CURRENT_DATE - 6 MONTHS)
> 
> HTH,
> Charles 
> 
> Charles Wilt
> iSeries Systems Administrator / Programmer
> Mitsubishi Electric Automotive America
> ph: 513-573-4343
> fax: 513-398-1121
>  
> 
> > -----Original Message-----
> > From: Tim Ellifritz [mailto:tim@xxxxxxxxxxxxxxxxxxxxxxxxx]
> > Sent: Thursday, October 28, 2004 3:58 PM
> > To: Midrange-L@Midrange. Com
> > Subject: Date Variables in CL
> > 
> > 
> > Hi,
> > 
> > A newbie here...messing with CL...please let me know if I'm 
> > in the wrong
> > list.
> > 
> > I want to select all records from file VINLOG where IJDATE is 
> > 6 months ago
> > or later and IJTYPE is 1D, then insert them into QTEMP/CSDS. 
> > IJDATE format
> > is ccyymmdd (ex. 20041028)
> > 
> > Would I ??
> > 
> > RTVSYSVAL  SYSVAL(QDATE) RTNVAR(&QDATE)
> > 
> > 
> > Then the part I need help with I think, for below I need &CYMD to be
> > 20040428, April 28th??? How can I do that?
> > 
> > OVRDBF     FILE(VINLOG) SHARE(*YES)
> > OPNQRYF    FILE((VINLOG)) QRYSLT(' IJDATE *GE ' || +
> >              &CYMD || ' *AND IJTYPE *EQ ''1D'' ')
> > 
> > CPYFRMQRYF FROMOPNID(VINLOG) TOFILE(QTEMP/CSDS) +
> > MBROPT(*ADD) CRTFILE(*YES)
> > 
> > Or would it be easier with SQL? An example of that would be 
> > appreciated as
> > well...
> > 
> > Thanks,
> > Tim
> > 
> > 
> > 
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