Hi.
Another question.
Below source code is a part of pager_write_pagelist().
In this code, dbSize of pPager or pgno of pList are compared with
dbHistSize of pPager.
However, szFile variable is only calculated from dbSize of pPager.
/* Before the first write, give the VFS a hint of what the
Igor Korot wrote:
...
else
sqlite3_step( stmt );
You forgot to check for errors.
I guess the code that executes the COMMIT has the same bug.
Regards,
Clemens
___
sqlite-users mailing list
sqlite-users@sqlite.org
Thanks for the replies so far.
I've been trying to get the database to lock - I am using a program I developed
which runs on 2 of my computers but connected to the same SQLite database:
mstrSQL = PRAGMA locking_mode = EXCLUSIVE;BEGIN EXCLUSIVE;UPDATE
Utilities SET OwnersName = '
Clement,
On Wed, Apr 24, 2013 at 12:50 AM, Clemens Ladisch clem...@ladisch.dewrote:
Igor Korot wrote:
...
else
sqlite3_step( stmt );
You forgot to check for errors.
I guess the code that executes the COMMIT has the same bug.
I am checking the error.
It is from the
On Wed, 24 Apr 2013 11:19:32 +0200
J Trahair j.trah...@foreversoftware.co.uk wrote:
Thanks for the replies so far.
I've been trying to get the database to lock - I am using a program I
developed which runs on 2 of my computers but connected to the same SQLite
database:
Igor Korot wrote:
Clement,
Who? ;-)
On Wed, Apr 24, 2013 at 12:50 AM, Clemens Ladisch clem...@ladisch.dewrote:
Igor Korot wrote:
...
else
sqlite3_step( stmt );
You forgot to check for errors.
I guess the code that executes the COMMIT has the same bug.
I am checking the
I had closed the connection after the COMMIT, but it works great if I don't.
Thank you for that! I like the kitchen analogy, but it's more like 'Form an
orderly queue for the electric citrus juicer' instead of all crowding round it
and trying to juice 6 oranges and 4 lemons at once. In the end,
On 24 Apr 2013, at 4:47am, Igor Korot ikoro...@gmail.com wrote:
sqlite3_step( stmt );
sqlite3_finalize( stmt );
Please check the values SQLite returns from the _step and _finalize calls to
make sure it's not generating an error.
Simon.
___
On 24 Apr 2013, at 11:58am, J Trahair j.trah...@foreversoftware.co.uk wrote:
I had closed the connection after the COMMIT, but it works great if I don't.
Your problem is not with closing the connection but with the COMMIT. The BEGIN
goes with the COMMIT. When you go 'BEGIN EXCLUSIVE' you do
On Tue, Apr 23, 2013 at 08:47:18PM -0700, Igor Korot scratched on the wall:
Here is the code:
query = wxString::Format( INSERT INTO playersdrafted VALUES( %d, %d, (
SELECT ownerid FROM owners WHERE ownername = \%s\ AND id = %d ), %d, %d,
\%s\ );, player.GetPlayerId(), leagueId,
On 4/24/2013 12:45 AM, Igor Korot wrote:
In the beginning I'm issuing BEGIN. In the end if everything is good I'm
issuing COMMIT, if not ROLLBACK.
So when running under debugger in Visual Studio, right after sqlite3_step()
call I am issuing SELECT * FROM playersdrafted in the console.
It comes
We're using SQLite to manage a roughly 250Mb database on both Linux and Mac. In
order to make our lookups fast, we're creating an index table in the database.
On Linux, creating the table takes about 200 seconds. On the Mac the same
operation takes 6,400 seconds. Here's the CREATE INDEX
Hi,
I've just started using SQLite and having come from another dbms environment
I'm trying to find out if some of the features that I'm used to using in my
coding are available with Sqlite. I've done a lot of searching through the
documentation and I apologise if the information is there but
I'm running into I/O errors when trying to access a sqlite3 database
which is using WAL from my app. While using journal_mode=delete,
everything is fine, but as soon as I switch over to journal_mode=wal, I
just get a load of I/O errors on any query, regardless if it is a SELECT
or UPDATE/INSERT.
On 23 Apr 2013, at 4:58pm, Alan Frankel alan.fran...@mathworks.com wrote:
We're using SQLite to manage a roughly 250Mb database on both Linux and Mac.
In order to make our lookups fast, we're creating an index table in the
database. On Linux, creating the table takes about 200 seconds. On
I'm running into I/O errors when trying to access a sqlite3 database
which is using WAL from my app. While using journal_mode=delete,
everything is fine, but as soon as I switch over to journal_mode=wal, I
just get a load of I/O errors on any query, regardless if it is a SELECT
or UPDATE/INSERT.
On Wed, Apr 24, 2013 at 8:28 AM, Sašo Kiselkov skiselkov...@gmail.comwrote:
I'm running into I/O errors when trying to access a sqlite3 database
which is using WAL from my app. While using journal_mode=delete,
everything is fine, but as soon as I switch over to journal_mode=wal, I
just get a
On 23 Apr 2013, at 7:57pm, David Wellman david.well...@ward-analytics.com
wrote:
Q1) Is it possible to execute sql commands asynchronously ? i.e. my program
issues the sql command and then 'loops' whilst waiting for the command to
finish. The main need for this is so that my user has a
David Wellman wrote:
Q1) Is it possible to execute sql commands asynchronously ? i.e. my program
issues the sql command and then 'loops' whilst waiting for the command to
finish.
No; SQLite runs neither on a separate server nor in a separate process/
thread. SQLite is a library that runs as
On 04/24/2013 03:57 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 8:28 AM, Sašo Kiselkov skiselkov...@gmail.comwrote:
I'm running into I/O errors when trying to access a sqlite3 database
which is using WAL from my app. While using journal_mode=delete,
everything is fine, but as soon as I
I've found that either one of these will lock the database:
mstrSQL = PRAGMA locking_mode = EXCLUSIVE;BEGIN EXCLUSIVE;
mstrSQL = PRAGMA locking_mode = EXCLUSIVE;BEGIN EXCLUSIVE;COMMIT;
and that closing the connection a little while later (eg. 0.25sec)
On 04/24/2013 04:28 PM, Sašo Kiselkov wrote:
On 04/24/2013 03:57 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 8:28 AM, Sašo Kiselkov skiselkov...@gmail.comwrote:
I'm running into I/O errors when trying to access a sqlite3 database
which is using WAL from my app. While using
On Wed, Apr 24, 2013 at 10:28 AM, Sašo Kiselkov skiselkov...@gmail.comwrote:
On 04/24/2013 03:57 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 8:28 AM, Sašo Kiselkov skiselkov...@gmail.com
wrote:
I'm running into I/O errors when trying to access a sqlite3 database
which is using WAL
On 04/24/2013 04:41 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 10:28 AM, Sašo Kiselkov skiselkov...@gmail.comwrote:
On 04/24/2013 03:57 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 8:28 AM, Sašo Kiselkov skiselkov...@gmail.com
wrote:
I'm running into I/O errors when trying to
Hi all,
Many thanks for the info. I'll look into using the changes function for what
I need.
Cheers,
Dave
Ward Analytics Ltd - information in motion
Tel: +44 (0) 118 9740191
Fax: +44 (0) 118 9740192
www: http://www.ward-analytics.com
Registered office address: The Oriel, Sydenham Road,
Hello,
I am using sqlite3 (3.7.15.2 at the moment) in a project.
I discovered that the order of columns in a group by affects the
performance of a query. Is this expected?
For example:
Table: Column A int, Column B int, Column C int
One Index: A,B (combined)
Query 1: SELECT A,B,count(*)
On 04/24/2013 04:44 PM, Sašo Kiselkov wrote:
On 04/24/2013 04:41 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 10:28 AM, Sašo Kiselkov
skiselkov...@gmail.comwrote:
On 04/24/2013 03:57 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 8:28 AM, Sašo Kiselkov skiselkov...@gmail.com
wrote:
On Wed, 24 Apr 2013 16:35:21 +0200
J Trahair j.trah...@foreversoftware.co.uk wrote:
I've found that either one of these will lock the database:
mstrSQL = PRAGMA locking_mode = EXCLUSIVE;BEGIN EXCLUSIVE;
mstrSQL = PRAGMA locking_mode = EXCLUSIVE;BEGIN
*Daniel Winter wrote:0*
I discovered that the order of columns in a group by affects the
performance of a query. Is this expected?
Yes.
For example:
Table: Column A int, Column B int, Column C int
One Index: A,B (combined)
Query 1: SELECT A,B,count(*) from tableTest group by A,B
On 4/24/2013 11:49 AM, Larry Brasfield wrote:
*Daniel Winter wrote:0*
Table: Column A int, Column B int, Column C int
One Index: A,B (combined)
Query 1: SELECT A,B,count(*) from tableTest group by A,B
Query 2: SELECT A,B,count(*) from tableTest group by B,A
Query 1 will use the index,
On 04/24/2013 05:17 PM, Sašo Kiselkov wrote:
On 04/24/2013 04:44 PM, Sašo Kiselkov wrote:
On 04/24/2013 04:41 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 10:28 AM, Sašo Kiselkov
skiselkov...@gmail.comwrote:
On 04/24/2013 03:57 PM, Richard Hipp wrote:
On Wed, Apr 24, 2013 at 8:28 AM,
On 24 Apr 2013, at 5:14pm, Igor Tandetnik i...@tandetnik.org wrote:
Note though that the query doesn't have an ORDER BY clause. It doesn't
request rows in any particular order. SQLite could, in principle, reorder
columns in GROUP BY to take advantage of the index. I suppose the optimizer
I've solved these two (in my case sqlite3_busy_timeout isn't necessary and can
just be removed, sqlite4_result_blob and sqlite4_result_text now take a xDel
argument that can just be zeroed out, and sqlite4_create_collation now takes a
callback to generate keys for the k/v storage engine that
On Wed, Apr 24, 2013 at 3:54 AM, Clemens Ladisch clem...@ladisch.de wrote:
Igor Korot wrote:
Clement,
Who? ;-)
Oops...
I promise I will never write an E-mail at 1:00 AM ;-)
On Wed, Apr 24, 2013 at 12:50 AM, Clemens Ladisch clem...@ladisch.de
wrote:
Igor Korot wrote:
...
else
Hi, ALL,
On Wed, Apr 24, 2013 at 11:11 AM, Igor Korot ikoro...@gmail.com wrote:
On Wed, Apr 24, 2013 at 3:54 AM, Clemens Ladisch clem...@ladisch.dewrote:
Igor Korot wrote:
Clement,
Who? ;-)
Oops...
I promise I will never write an E-mail at 1:00 AM ;-)
On Wed, Apr 24, 2013 at
On Tue, Apr 23, 2013 at 5:58 PM, Alan Frankel alan.fran...@mathworks.comwrote:
...Why is the Mac 30 times slower than Linux? They're both on the same
network, accessing the same network drive location, so neither has the
advantage of local disk access.
i'm speculating, but i have seen (on
Igor Korot wrote:
On Wed, Apr 24, 2013 at 12:50 AM, Clemens Ladisch clem...@ladisch.de
wrote:
Igor Korot wrote:
...
else
sqlite3_step( stmt );
You forgot to check for errors.
I guess the code that executes the COMMIT has the same bug.
sqlite3_step() returns 101 which means
Clemens,
On Wed, Apr 24, 2013 at 12:21 PM, Clemens Ladisch clem...@ladisch.dewrote:
Igor Korot wrote:
On Wed, Apr 24, 2013 at 12:50 AM, Clemens Ladisch clem...@ladisch.de
wrote:
Igor Korot wrote:
...
else
sqlite3_step( stmt );
You forgot to check for errors.
I guess
On Wed, Apr 24, 2013 at 12:59 PM, Igor Korot ikoro...@gmail.com wrote:
Clemens,
On Wed, Apr 24, 2013 at 12:21 PM, Clemens Ladisch clem...@ladisch.dewrote:
Igor Korot wrote:
On Wed, Apr 24, 2013 at 12:50 AM, Clemens Ladisch
clem...@ladisch.de
wrote:
Igor Korot wrote:
...
else
On Wed, Apr 24, 2013 at 11:21 AM, Sašo Kiselkov skiselkov...@gmail.com wrote:
ZFS has been the filesystem of choice for SunOS-based systems for about
the last 5 years now, is becoming that for FreeBSD as we speak, and is
More like 8 years :)
quickly gaining ground on Linux. The absence of
On Wed, Apr 24, 2013 at 12:21 PM, Sašo Kiselkov skiselkov...@gmail.comwrote:
Just as a quick follow-up on this, when I manually undefine
HAVE_POSIX_FALLOCATE, which makes SQLite fall back to the
truncate-and-write implementation, everything works fine.
ZFS has been the filesystem of choice
On Wed, Apr 24, 2013 at 3:25 PM, Richard Hipp d...@sqlite.org wrote:
On Wed, Apr 24, 2013 at 12:21 PM, Sašo Kiselkov skiselkov...@gmail.comwrote:
...
SQLite is using posix_fallocate() to allocate space for a region of shared
memory obtained using mmap(). If the space cannot be preallocated,
On 04/24/2013 10:25 PM, Richard Hipp wrote:
SQLite is using posix_fallocate() to allocate space for a region of shared
memory obtained using mmap(). If the space cannot be preallocated, then
when we use the mmapped region and an attempt is made to allocate the space
and the filesystem is
On Wed, 24 Apr 2013 07:20:59 -0500
Jay A. Kreibich j...@kreibi.ch wrote:
query = wxString::Format( INSERT INTO playersdrafted VALUES( %d, %
d, ( SELECT ownerid FROM owners WHERE ownername = \%s\ AND id = %
d ), %d, %d, \%s\ );, player.GetPlayerId(), leagueId,
const_castCPlayer ( player
Hi there,
We're using a custom FTS tokenizer in our database. We'd like to use the
SQLite shell to debug our database, but it can't deal with our FTS tables
because the custom tokenizer isn't registered.
Does someone have a clever way of getting a custom tokenizer into a build of
the
On Wed, Apr 24, 2013 at 7:39 PM, Paul Vercellotti pverce...@yahoo.comwrote:
Does someone have a clever way of getting a custom tokenizer into a build
of the sqlite shell, without modifying the shell sources?
Put your tokenizer in a shared library. See
On Wed, 24 Apr 2013 17:46:00 +0100
Simon Slavin slav...@bigfraud.org wrote:
On 24 Apr 2013, at 5:14pm, Igor Tandetnik i...@tandetnik.org wrote:
Note though that the query doesn't have an ORDER BY clause. It
doesn't request rows in any particular order. SQLite could, in
principle, reorder
James,
On Wed, Apr 24, 2013 at 4:39 PM, James K. Lowden
jklow...@schemamania.orgwrote:
On Wed, 24 Apr 2013 07:20:59 -0500
Jay A. Kreibich j...@kreibi.ch wrote:
query = wxString::Format( INSERT INTO playersdrafted VALUES( %d, %
d, ( SELECT ownerid FROM owners WHERE ownername = \%s\ AND
On 25 Apr 2013, at 1:54am, Igor Korot ikoro...@gmail.com wrote:
Then why this query works in the command prompt console? I don't have Team
1 column name in any of the tables.
Nevertheless I'm going to change this and all other queries that use the
string literals ot use
sqlite3_bind_text()
Simon,
On Wed, Apr 24, 2013 at 5:56 PM, Simon Slavin slav...@bigfraud.org wrote:
On 25 Apr 2013, at 1:54am, Igor Korot ikoro...@gmail.com wrote:
Then why this query works in the command prompt console? I don't have
Team
1 column name in any of the tables.
Nevertheless I'm going to
On 25 Apr 2013, at 3:28am, Igor Korot ikoro...@gmail.com wrote:
Changed. No difference at all. Record is still does not show up.
My guess is that you are opening different files in the shell and your app.
This is usually caused by a default file path not being what you think it is.
Use one
On Wed, 24 Apr 2013 19:50:14 -0400
Richard Hipp d...@sqlite.org wrote:
On Wed, Apr 24, 2013 at 7:39 PM, Paul Vercellotti
pverce...@yahoo.comwrote:
Does someone have a clever way of getting a custom tokenizer into a
build of the sqlite shell, without modifying the shell sources?
Put
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