Re: Help with SQL statement

Try:
select a.barcode
from tablea a, tableb b
where a.barcode = b.barcode (+)
  and b.barcode is null;

In article <8sess8$sf$1_at_news.inet.tele.dk>,   "Peter Kirk" <peter_kirk_at_alpha-gruppen.dk> wrote:
> Hi there
>
> I am *very* inexperienced with sql, and I am trying to write a
 statement to
> select certain rows from one table, given that no corresponding row
 exists
> in another table.
>
> That is, I have TableA, and TableB.
>
> TableA has these columns of interest:
> barcode;
> description;
>
> TableB has these columns of interest
> barcode;
> description;
>
> I want to find all "barcodes" that are in TableA, but not in TableB.
 How can
> I do this is a single sql statement?
>
> I am experimenting with "outer join" at the moment, but I'm not sure
 if this
> is entirely correct, and I can't seem to find the correct syntax.
>
> Thanks for any help,
> Peter.
>
>

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Before you buy. Received on Mon Oct 16 2000 - 08:39:26 CDT