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Joel,

You might want to try this instead.

 D pExtDS         S                        *    Inz(%addr(extds))
 d extDS        e ds                            extname(EXTDS)
 d extDSovr                             100a    BASEd(pExtDS) 
%dim(elem)

Of course I don't know but think the SQL preprocessor doesn't like
any RPG IV extensions beyond that of V3R2. :)

-Bob


> 
> I'm trying to overlay an external DS that gets populated by an SQL
> statement.  When I do NOT include the data, the DS is populated
> correctly: if I add the overlay, the DS is blank even though the
SQL
> statement has no trouble finding the record.
> 
> <psuedo-code>
> 
> // this way extDS gets populated
> d extDS        e ds                            extname(EXTDS)
> ...
> c/exec SQL
> c+   Fetch next 
> c+    from myCursor 
> c+    into :extDS
> c/end-exec
> 
> // this way extDS (and hence extDSovr) does NOT get populated
> // elem is the correct number of fields in EXTDS
> // All fields in EXTDS are defined the same: 100a
> d extDS        e ds                            extname(EXTDS)
> d extDSovr                             100a    overlay(extDS)
> %dim(elem)
> ...
> c/exec SQL
> c+   Fetch next 
> c+    from myCursor 
> c+    into :extDS
> c/end-exec
> 
> </psuedo-code>
> 
> Any idea why this is happening or even better how to fix it?
> 
> Thanks!
> 
> Joel
> http://www.rpgnext.com
> 
> 
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