SV: Hmmmmm

There are more rows in that table.

It's one that we use for storing sequential numbers we use... like invoice numbers, membership numbers etcetc

So we have to lock row when using it, so noone else uses the same number when we add a new member or
create a new invoice...

But good advice tho, and I would have used lock on it if not for the fact that we have to use row locking
on it...

/Stefan

> -----Ursprungligt meddelande-----
> Från: Rachel Carmichael [mailto:wisernet100_at_yahoo.com]
> Skickat: den 25 januari 2002 15:00
> Till: Multiple recipients of list ORACLE-L
> Ämne: Re: Hmmmmm
>
>
> is there only one row in that table? if so, you can lock the table
> itself.
>
> try it without the nowait...
>
>
>
> --- Stefan Jakobsson <stefan_at_areldata.se> wrote:
> > Having a small problem I need some help with...
> >
> > The problem is trying to lock a row on a parameter table for an
> > application.
> >
> > The thing we need to do is following:
> >
> > Read the value in one row. LOCK that row for other users, increase
> > the value
> > with one
> > update the row with the new value and release if for access to other
> > users.
> >
> > We are trying to use the following SQL statement.
> >
> > SELECT medlnr FROM parametrar FOR UPDATE OF medlnr NOWAIT;
> >
> > But the thing is that when we try, anyone can head on in and select
> > the same
> > value
> > and even make an update of that row...
> >
> > What am I missing here?
> >
> > Regards,
> > Stefan Jakobsson
> > Programmer
> > Arel-Data
> > --
> > Please see the official ORACLE-L FAQ: http://www.orafaq.com
> > --
> > Author: Stefan Jakobsson
> > INET: stefan_at_areldata.se
> >
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--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Stefan Jakobsson
  INET: stefan_at_areldata.se

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
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