Tapan Trivedi <tapan.trivedi_at_abbnm.com> wrote in message news:38503319.90AF7F19_at_abbnm.com...
> Hi gurus,
> I have a question for you all. One of my developers is trying to
> update a table with around
> 16500 records . She is trying a very simple update statement
> update tablename set column1 = 'N' where column1 = 'Y'
> She has around 12500 records which will be affected.
> It has taken around 16 hours now for this simple operation. Other
> tables on the same
> instance do not have any problems for similar updates.
> There were about 35 constraints on this table which I disable hoping
>
> to do better this time
> without any success. Am I missing something obvious ? Should I be
> concerned about anything else ??
>
> Any comments,
> suggestions , ideas will be appreciated.
- Try to identify whether she was waiting for someone to release locks.
- If column1 is indexed, drop the indexes before update!
Received on Fri Dec 10 1999 - 23:37:13 CST
