Re: How to write such a query

>
> > How to find what the primary key (or UNIQUE identifier) value is
> > for row 5 in the recordset?
>
> You're missing the point: as mentioned before, there is no "row 5". To
> update the 5th record that you've fetched, you increment a counter each
> time
> you fetch a row, and when you read #5, do an UPDATE X SET field1 = 'blarg'
> WHERE id = <thekeyvalue>;
>
>
It seems worth mentioning for benefit of the OPs question that there _is_ a
way to get a row number within a result set. Understanding and making good
use of that is an additional matter.

SELECT X.field1, Y.field2*,row_number() OVER ()* from X, Y WHERE X.id =
Y.id -- ORDER BY ____?

That row number is going to depend on the order of the query, so it might
or might not have any meaning. But if you queried with a primary key and a
row number, you could then tie the two together and make an update based on
that.

Cheers,
Ken
--
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