IF you are looking to break up the update into more 'manageable' pieces, here is a
thought...
UPDATE EMP2
SET GENDER = 'F'
WHERE GENDER = ' '
AND ROWNUM <= 100;
UPDATE EMP2
SET GENDER = 'F'
WHERE GENDER = ' '
AND ROWNUM <= 100;
*Since the first 100 records have already been updated, the second update will update
the next 100. Run the statement several until you have updated all the records
concerned. You can commit in between or not, as long as you do all this as one session.
MaryAnn Atkinson wrote:
>
> Can the inner-outer idea be extended to an update?
>
> UPDATE EMP2
> SET GENDER = 'F'
> WHERE GENDER = ' '
> AND ROWNUM BETWEEN 10 AND 20;
>
> That does NOT work, because as we explained the returned rows
> are numbered starting from 1, and so rownum never really matches
> a 10 or 20 or anything in between.
>
> Thanks,
> maa
>
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