Re: [open-cobol-list] tree data, embedding a language or string interpolation?

[john Culleton]

On Mon, 18 Mar 2013 11:34:41 +0000 (GMT)
Dave Stratford <address@hidden> wrote:

> On 17 Mar, john Culleton <address@hidden> wrote:
> 
> <Large snip>
> 
> > 02 main-key pic x10.  
> > 02 sub-area redefines main-key.  
> >   03 primary-number pic x(5).  
> >   03 sub-number pic x(5).
> 
> > This takes up 10 bytes total. main-key is the primary key (must
> > be unique) and primary-number and sub-number are alternate keys
> > that allow for duplication.
> 
> Um, wouldn't
> 
> 02  main-key.
>   03  primary-number pic x(5).
>   03  sub-number pic x(5).
> 
> Have been more effecient? Here main-key is still, logicall, x(10),
> and can be accessed as such. You don't need sub-area, so removing
> both you also get rid of the redefines. For this particular
> definition they don't appear to be necessary.
> 
> Dave


Without testing---
Can a group item be used as an ISAM primary key in OC? I know
split keys are not implemented. 
-- 
John Culleton
Wexford Press
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