#x27;, instead of a 'while do.'
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of John Machin
Sent: Thursday, May 28, 2009 7:19 PM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt database recov
On 29/05/2009 10:18 AM, John Machin wrote:
> On 29/05/2009 9:34 AM, Gene Allen wrote:
>> Yeah.
>>
>> Since my code works in blocks, read/compress/encrypt/write, loop. Almost
>> all the real data was being written to the compressed file, however any
>> finalization and flushing of the stream wasn
On 29/05/2009 9:34 AM, Gene Allen wrote:
> Yeah.
>
> Since my code works in blocks, read/compress/encrypt/write, loop. Almost
> all the real data was being written to the compressed file, however any
> finalization and flushing of the stream wasn't occurring (since the encrypt
> was failing)
a
>
> Since my code works in blocks, read/compress/encrypt/write, loop. Almost
> all the real data was being written to the compressed file, however any
> finalization and flushing of the stream wasn't occurring (since the encrypt
> was failing) so the last bit of any SQLite database wouldn't be
SQLite Database; kennethinbox-sql...@yahoo.com
Subject: Re: [sqlite] corrupt database recovery
> I think I found my defect: my old stress tests was based on doing
> compression/encryptions/decryption/decompression passes on files of random
> sizes; so I would do about a 10 million passes or so
> I think I found my defect: my old stress tests was based on doing
> compression/encryptions/decryption/decompression passes on files of random
> sizes; so I would do about a 10 million passes or so and say...that's pretty
> good.
>
> Well...a more structured test exposed the problem and it w
ur help and advice.
Gene
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Ken
Sent: Thursday, May 28, 2009 11:32 AM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt database recovery
Gene,
Im sure others have sugg
Gene,
Im sure others have suggested, but have you tried running your code through
valgrind?
Can you remove the custom VFS ?
--- On Wed, 5/27/09, Gene Allen wrote:
> From: Gene Allen
> Subject: Re: [sqlite] corrupt database recovery
> To: mgr...@medcom-online.de, "'Ge
x27;m running a large test on the encryption/compression code to
> see
> if I can get it to break.
>
> -Original Message-
> From: sqlite-users-boun...@sqlite.org
> [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Marcus Grimm
> Sent: Wednesday, May 27, 2009 5:09
'General Discussion of SQLite Database'
Subject: Re: [sqlite] corrupt database recovery
I'm sorry that I can't help with the SQLite part, but couldn't you write a
simple test harness that would create a file (of random size?) with random
contents, encrypt/compress to a
alf Of Marcus Grimm
Sent: Wednesday, May 27, 2009 5:09 PM
To: 'General Discussion of SQLite Database'
Subject: Re: [sqlite] corrupt database recovery
sorry, I don't know where sqlite stores any kind of data like
index or raw table, my suspect is that, since sqlite
usually looks for a
n it.
> >
> > I'm sure that it's a coding error on my part. SQLite is very stable,
> in
> > my
> > opinion. I'm just trying to get a rough idea on where I'm screwing
> up the
> > database.
> >
> >
> > -Original Mess
rethink my approach.
>
>
> -Original Message-
> From: sqlite-users-boun...@sqlite.org
> [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Marcus Grimm
> Sent: Wednesday, May 27, 2009 2:44 PM
> To: General Discussion of SQLite Database
> Subject: Re: [sqlite] corrupt da
ll have to rethink my approach.
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Marcus Grimm
Sent: Wednesday, May 27, 2009 2:44 PM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt database recovery
so, if you thin
John Elrick
> Sent: Wednesday, May 27, 2009 12:58 PM
> To: General Discussion of SQLite Database
> Subject: Re: [sqlite] corrupt database recovery
>
> What platform? Any chance they are using a network drive?
>
>
> John
>
> Gene wrote:
>> My code is outside th
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of John Elrick
Sent: Wednesday, May 27, 2009 12:58 PM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt database recovery
What platform? Any chance they
---Original Message-
> From: sqlite-users-boun...@sqlite.org
> [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of John Elrick
> Sent: Wednesday, May 27, 2009 10:59 AM
> To: General Discussion of SQLite Database
> Subject: Re: [sqlite] corrupt database recovery
>
> Gene All
John Elrick
> Sent: Wednesday, May 27, 2009 10:59 AM
> To: General Discussion of SQLite Database
> Subject: Re: [sqlite] corrupt database recovery
>
> Gene Allen wrote:
>> Ok...it's happened again and I've decided that I need to track this down
>> once and for all!
>
Sent: Wednesday, May 27, 2009 10:59 AM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt database recovery
Gene Allen wrote:
> Ok...it's happened again and I've decided that I need to track this down
> once and for all!
>
> Here is what I'm seeing
Gene Allen wrote:
> Ok...it's happened again and I've decided that I need to track this down
> once and for all!
>
> Here is what I'm seeing: I get errors when I do a integrity_check (see
> below), but I can .dump it to a text file and then .read it into another
> database ok.
>
> It seems to me th
.@sqlite.org] On Behalf Of John Machin
Sent: Saturday, April 25, 2009 8:15 PM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt database recovery
On 26/04/2009 5:47 AM, Gene wrote:
> Every now and again, we have a database that gets corrupt in the field
(bad
> coding o
Cool solution.
On Sun, Apr 26, 2009 at 6:39 AM, Jim Wilcoxson wrote:
> You could do a binary search to find the highest accessible rowid:
>
> select rowid where rowid = 2147483647 (fails)
> select rowid where rowid = 1073741824 (fails)
> ...
> select rowid where rowid = 65536 (fails)
You could do a binary search to find the highest accessible rowid:
select rowid where rowid = 2147483647 (fails)
select rowid where rowid = 1073741824 (fails)
...
select rowid where rowid = 65536 (fails)
select rowid where rowid = 32768 (works!)
select rowid where rowid = 4
Hi Gene,
On Apr 25, 2009, at 3:47 PM, Gene wrote:
> Every now and again, we have a database that gets corrupt in the
> field (bad
> coding on our end, not sqlite).
How do you corrupt a database with bad coding? Just curious...
-- Tito
___
sqlite-use
t build my insert on the fly.
Thank you.
Gene
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of John Machin
Sent: Saturday, April 25, 2009 9:30 PM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt data
On 26/04/2009 11:28 AM, Gene wrote:
> You are exactly right John...that is indeed what the code looks
> like...except we have over 25 columns (it's a flat table).
I presume that you are referring to this:
"""
Write a script that loops around doing 'select * from mytable where
rowid = ?' on a c
hanks for you comments John!
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of John Machin
Sent: Saturday, April 25, 2009 8:15 PM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] corrupt database recovery
On 26/
On 26/04/2009 5:47 AM, Gene wrote:
> Every now and again, we have a database that gets corrupt in the field (bad
> coding on our end, not sqlite).
>
Hi Gene,
The obvious question: why not fix the bad code?
What does 'PRAGMA integrity_check;' say about these corrupt databases?
> When we get on
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