[sqlite] Multiple Users - Finally

2006-07-07 Thread Anne . Kirchhellen
Hello all If I look at the "Locking And Concurrency"-Description from my current Viewpoint, as a Viewpoint with present understandig, the Description is ok. If I remember to my Viewpoint in the past, without this present understandig, before some very pleasant helppostings explain the

Re: [sqlite] Multiple Users

2006-07-06 Thread John Stanton
[EMAIL PROTECTED] wrote: Original-Nachricht Datum: Wed, 05 Jul 2006 17:24:54 -0500 Von: John Stanton <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users Hello John Ann don't cry into your beer, there is always next time! My team als

Re: Re: [sqlite] Multiple Users

2006-07-06 Thread Anne . Kirchhellen
Original-Nachricht Datum: Wed, 05 Jul 2006 17:24:54 -0500 Von: John Stanton <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users Hello John > Ann don't cry into your beer, there is always next time! My team also > got knocked

Re: [sqlite] Multiple Users

2006-07-05 Thread John Stanton
nto German). [EMAIL PROTECTED] wrote: Original-Nachricht Datum: Wed, 05 Jul 2006 13:01:12 -0500 Von: John Stanton <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users First, sad about the football, but someone has to win. Its only footbal

Re: Re: [sqlite] Multiple Users

2006-07-05 Thread Anne . Kirchhellen
Original-Nachricht Datum: Wed, 05 Jul 2006 19:30:04 +0100 Von: Nikki Locke <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users > We seem to have a misunderstanding over the definition of "optomistic > locking". Yes,

Re: Re: [sqlite] Multiple Users

2006-07-05 Thread Anne . Kirchhellen
Original-Nachricht Datum: Wed, 05 Jul 2006 13:01:12 -0500 Von: John Stanton <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users > First, sad about the football, but someone has to win. Its only football... and so hard it is... th

Re: [sqlite] Multiple Users

2006-07-05 Thread John Stanton
-users@sqlite.org Betreff: Re: [sqlite] Multiple Users Hi John I think, I understand what you will to say Sqlite is a single file shared between users just like a word processing file shared between multiple users. It is not a DBMS server and just uses the regular fcntl type file locks. bu

Re: Re: [sqlite] Multiple Users

2006-07-05 Thread Anne . Kirchhellen
Original-Nachricht Datum: Wed, 05 Jul 2006 07:32:47 -0600 Von: Dennis Cote <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users > Anne, > > Yes, ... A simple "Yes" :-))) >...your description is correct Hi D

Re: Re: [sqlite] Multiple Users

2006-07-05 Thread Anne . Kirchhellen
-Nachricht Datum: Wed, 05 Jul 2006 12:05:07 +0100 Von: Nikki Locke <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users > ...the way SQLite works during a database update is that the > entire database file is locked, and remains locked unti

Re: [sqlite] Multiple Users

2006-07-05 Thread Dennis Cote
[EMAIL PROTECTED] wrote: but... I want try to ask again... ;-) SQLite handles the File-Lockings as a physical Locking during the writings to File and Disk. (Is it so?) I do my own logical Locking during the Edit of a Record and then reflect to the Busy-State if the changes will be saved to

Re: Re: [sqlite] Multiple Users

2006-07-05 Thread Anne . Kirchhellen
Original-Nachricht Datum: Wed, 5 Jul 2006 13:19:30 +0200 Von: "Olaf Beckman Lapré" <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users Hi Olaf > Why not use optimistic locking (timestamp based pseudo locking)? It's > ussua

Re: [sqlite] Multiple Users

2006-07-05 Thread Olaf Beckman Lapré
Why not use optimistic locking (timestamp based pseudo locking)? It's ussually sufficient. Olaf - Original Message - From: "Nikki Locke" <[EMAIL PROTECTED]> To: <sqlite-users@sqlite.org> Sent: Wednesday, July 05, 2006 1:05 PM Subject: Re: [sqlite] Multipl

Re: [sqlite] Multiple Users

2006-07-05 Thread Nikki Locke
> In order to this, the next question ;-) Is a physcial Locking to the > DB allways necessary, if more the one User (writer) connect to a DB > and a Table? That means, is it insufficient, if I handle only a > logical Locking in the Application instead of physcial Locking? As I understand it

Re: Re: [sqlite] Multiple Users

2006-07-05 Thread Anne . Kirchhellen
Original-Nachricht Datum: Tue, 04 Jul 2006 19:13:56 -0500 Von: John Stanton <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users Hi John I think, I understand what you will to say > Sqlite is a single file shared between users

Re: [sqlite] Multiple Users

2006-07-04 Thread John Stanton
Stanton <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users Hello Gerrry, Aristotle and John Many thanks for your answers. I'm very glad about your help. Yes, I found this Page (File Locking And Concurrency In SQLite Version 3) at last weekend and read i

Re: Re: [sqlite] Multiple Users

2006-07-04 Thread Anne . Kirchhellen
Original-Nachricht Datum: Tue, 04 Jul 2006 12:01:25 -0500 Von: John Stanton <[EMAIL PROTECTED]> An: sqlite-users@sqlite.org Betreff: Re: [sqlite] Multiple Users Hello Gerrry, Aristotle and John Many thanks for your answers. I'm very glad about your help. Yes, I

Re: [sqlite] Multiple Users

2006-07-04 Thread John Stanton
If your application observes the locking rules or provides its own synchronization you can have very many concurrent users. If your application doesn't observe locking you can only have one user. Your question is the same as "how many users can share a file", because Sqlite is basically a

Re: [sqlite] Multiple Users

2006-07-04 Thread A. Pagaltzis
* [EMAIL PROTECTED] <[EMAIL PROTECTED]> [2006-07-03 21:35]: > How many Users can be reader/writer to a DB at the same time, > if all User controlled by the logical Locking-System? > > I have searched in Mail-Archiv and in Docu, but I dont found > any Infos about concurrent Users. That’s because

Re: [sqlite] Multiple Users

2006-07-03 Thread Gerry Snyder
[EMAIL PROTECTED] wrote: Hi to all ... any questions... ;-) How many Users can operate with one SQLite-DB at the same time? Anne, Look at the following documentation, and if you have further questions, do not hesitate to ask: http://sqlite.org/lockingv3.html Gerry

[sqlite] Multiple Users

2006-07-03 Thread Anne . Kirchhellen
Hi to all ... any questions... ;-) How many Users can operate with one SQLite-DB at the same time? That means (for example) max 5 users can work with a MDB (MS Access) connected via OLEDB. If more then 5 Users (writer) connect, the MDB getting often instable or corrupt. Is the a recommended