Re: Using CL, how do I get the month from a data date field? -- MIDRANGE-L

Booth Martin wrote:

I've done that Tom. (Its probably all I needed to do. As I said, Isuspect I am making this too complicated.) What is worrying me is ifThisSysytem uses a default of *ISO and ThatSystem uses a default of*USA, will I be in trouble running my CL on the other system?

Did you try with various job settings for CHGJOB DATFMT() to see ifthere were differences? Note that CVTDAT allows FROMFMT(*JOB) andFROMFMT(*SYSVAL). That means that it can adapt depending on job orsystem settings. You don't necessarily need to know what format isin effect.

Now, if you're being fed from some source that isn't _telling_ youwhat the format is, you're on your own no matter what. For example,if your program is called and is passed a parm variable with a'date' in it and there's no other parm to tell you the format, Iimagine you're needing to code some definite date intelligence inthere. That's no much different from being passed a variable lengthvalue without a hint of how long the value is.


Tom Liotta

Tom Liotta wrote:
Booth Martin wrote:
This is not how I understand it, but obviously I am no expert on thistopic.
Part of the problem that I face is that I do not know ahead of time whatthe *SYS or *JOB values will be.
Jeff Crosby wrote:
But when you define it as a field in the file, don't you have to specify a
date format, with *ISO being the default?  And this is what tells DB2 (or
DB400 or whatever the proper 'database' name is for i5) how to format it for
presentation in HLL or diaplays or whatnot?
Booth:
When you access the value in CL, it should already be formattedappropriately. Simplest way to see what the value looks like is torun DMPCLPGM just before CVTDAT.
If you run the program with a couple different date/format jobsettings, you should see exactly how it works through comparing thedumped values.