Yes, this sounds like you need to use a sequence. And you should seriously consider using a sequence, since you might continue to run into locking/performance issues trying to use a table.
Chris -----Original Message----- Sent: Friday, January 25, 2002 10:00 AM To: Multiple recipients of list ORACLE-L 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----- > Fr�n: Rachel Carmichael [mailto:[EMAIL PROTECTED]] > Skickat: den 25 januari 2002 15:00 > Till: Multiple recipients of list ORACLE-L > �mne: 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 <[EMAIL PROTECTED]> 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: [EMAIL PROTECTED] > > > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > > San Diego, California -- Public Internet access / Mailing > > Lists > > -------------------------------------------------------------------- > > To REMOVE yourself from this mailing list, send an E-Mail message > > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > > the message BODY, include a line containing: UNSUB ORACLE-L > > (or the name of mailing list you want to be removed from). You may > > also send the HELP command for other information (like subscribing). > > > __________________________________________________ > Do You Yahoo!? > Great stuff seeking new owners in Yahoo! Auctions! > http://auctions.yahoo.com > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Rachel Carmichael > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). > -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Stefan Jakobsson INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Grabowy, Chris INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
