Re: Varying - Inz mandatory?

[Ken.Slaugh@xxxxxxxxxx]

Answer #1

Change the If statement to check the length of error.description instead of
a space. This is a very common mistake when fixed length programmers
attempt to use variable length data.

Answer #2

Yes, temp2 is taking up more main storage. Setting the maximum length of
the variable length variable is important but not as important as being
able to support the need of you application program. Setting the value to
high tends to be wasteful and setting it too low results in data lose or
lack of support.

My two cents... Use variable length variables whenever appropriate. Mainly
because they process much quicker than fixed length strings.

Is INZ mandatory? No. Not any more then INZ on a fixed length string. But
then again, sometimes the INZ on a fixed length string is important and
keep in mind that the INZ value is actually determined at the EndSR time of
the *INZSR statement and that most likely could use it's own thread here to
discuss.

Hope this helps Aaron,

Ken Slaugh (707) 795-1512 x118
Chouinard & Myhre, Inc.
CA/400 Certified Specialist
iSeries Network/MSE Administrator
http://www.cm-inc.com/


                                                                                
                                   
                      "Bartell, Aaron L.                                        
                                   
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                      08/15/2003 07:39                                          
                                   
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                      Please respond to                                         
                                   
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I have a couple VARYING questions.

Question #1.

D error           DS                  Qualified
D  code                         10A
D  description                 256A   Varying
 /Free

  If error.description <> ' ';
    error.code = '0';
  EndIf;
  *InLR = *On;

 /End-Free

I get a 'Length of varying length variable is out of range.' error message
if I don't Inz the error DS or the description subfield.  This wouldn't be
a
problem if in the documentation they said that you needed to Inz
DS's/subfields if they have VARYING fields.  At least I can't seem to find
where it might state that, and I have looked both in the WDSc docs and Info
Center. Do you have to Inz or occupy a field before you can check to see if
it contains a value?  I am on V5R1.


Question #2
If I define two fields defined as this. . .

D temp        D           256A   Varying
D temp2       D         32767A   Varying

If both fields contain the value 'Hi there' is temp2 taking up more space
or
processing than temp?  Or doesn't it matter anymore now that I have VARYING
specified on each field?

TIA,
Aaron Bartell
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