e general cases later (if ever).
--
Best regards,
Ivan
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er of decreasing priority from
an array in my application, though I lose cross-database portability
(is there a portable way to pass an array to a parameterized query,
though?) and may lose some of the performance to the JOIN (didn't
build a sample application to run EXPLAIN QUERY PLAN, sorry)
effective way to express my query? Can the more general
problem of assigning a priority to all sources (e.g. "I want records
from source_id 3, otherwise 1, otherwise 2") be solved in a similar way?
--
Best regards,
Ivan
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SQLiteDataAdapater is dropping characters after a space in the field when
filling a datatable (c# winforms).
I.e.
Field
: 100 ml
Select returns
Cannot compile SQLite amalgamation with MDK-ARM (Keil). I have met errors:
|..\..\Libraries\sqlite-amalgamation-3081101\sqlite3.c(25838):error:#5:cannot
opensource input file"sys/types.h":No such fileordirectory
..\..\Libraries\sqlite-amalgamation-3081101\shell.c(59):error:#5:cannot
opensource
> Richard Hipp writes:
> On Fri, Nov 2, 2012 at 6:44 PM, Tod Olson wrote:
[…]
>> This is fine on small data, but when I load 1.8GB of data (8.8
>> million rows) the second CREATE fails, reporting a disk I/O error.
> You might be running out of /tmp space. Do you have plenty of /tmp
>>>>> Igor Tandetnik writes:
>>>>> Ivan Shmakov <oneing...@gmail.com> wrote:
>>>>> Igor Tandetnik writes:
>>> Note that ending up in the IGNORE branch of INSERT OR IGNORE
>>> statement doesn't constitute failure, but normal ex
> Igor Tandetnik writes:
[…]
> Note that ending up in the IGNORE branch of INSERT OR IGNORE
> statement doesn't constitute failure, but normal execution. The same
> is true for INSERT ... SELECT statement where SELECT returns zero
> rows so nothing is actually inserted.
Thus
>>>>> Ivan Shmakov writes:
>>>>> Simon Slavin writes:
>>>>> On 2 Nov 2012, at 8:58am, Ivan Shmakov wrote:
>>> INSERT OR IGNORE INTO "foo" ("foo")
>>> VALUES (?1);
>>> INSERT INTO "bar"
>>>>> Simon Slavin writes:
>>>>> On 2 Nov 2012, at 8:58am, Ivan Shmakov wrote:
>> INSERT OR IGNORE INTO "foo" ("foo")
>> VALUES (?1);
>> INSERT INTO "bar" ("foo")
>> VALUES ((SELECT f.&qu
>>>>> Clemens Ladisch writes:
>>>>> Ivan Shmakov wrote:
>> I wonder if I'm on safe side when I use, say:
>> INSERT OR IGNORE INTO "foo" ("foo")
>> VALUES (?1);
>> I mean, if the first INSERT fails for
I wonder if I'm on safe side when I use, say:
INSERT OR IGNORE INTO "foo" ("foo")
VALUES (?1);
INSERT INTO "bar" ("foo")
SELECT f."rowid"
FROM "foo" f
WHERE f."foo" = ?1;
(within a transaction) against the following schema:
CREATE TABLE "foo" ("foo" TEXT
current problem, but solving
SQLite inability to work with large data sets.
On Thu, Oct 18, 2012 at 12:12 AM, Richard Hipp <d...@sqlite.org> wrote:
> On Wed, Oct 17, 2012 at 11:58 AM, Ivan P <iva...@cloudberrylab.com> wrote:
>
> > Hello!
> >
> > I've got Out-Of-M
ks for about 10 minutes on my not loaded i5-2400 3.1Ghz, reaching by
this moment about 1.7Gb of memory in task manager, and then fails.
On Wed, Oct 17, 2012 at 8:44 PM, Simon Slavin <slav...@bigfraud.org> wrote:
>
> On 17 Oct 2012, at 4:58pm, Ivan P <iva...@cloudberrylab.com> w
Hello!
I've got Out-Of-Memory error when delete records from a table that has
about 150,000,000 records.
The table is created as:
CREATE TABLE differential_parts_temp (plan_id TEXT, [version_id] INT NOT
NULL, [page_index] INT NOT NULL, [md5low] INT64 NOT NULL, [md5high] INT64
NOT NULL);
CREATE
> Pavel Ivanov writes:
[...]
>> Unfortunately, the string concatenation operator, when applied to
>> two BLOB's, results in a text string instead of a BLOB, like:
>> SELECT quote (X'5445' || X'5354'); => 'TEST'
> Maybe the following?
> SELECT quote(cast(X'5445' || X'5354' as blob));
With substr (), it's possible to split a BLOB, like:
SELECT quote (substr (X'1337cafe', 3, 2));
=> X'CAFE'
However, how do I concatenate two blobs?
Unfortunately, the string concatenation operator, when applied
to two BLOB's, results in a text string instead of
> Baruch Burstein writes:
[…]
> My resources are a bunch of sound and image files, level data files,
> script files and other game data stuff. Instead of distributing my
> game with about 20-30 small (some very small) files, I thought I
> would roll all the files into some kind of
>>>>> Simon Slavin <slav...@bigfraud.org> writes:
>>>>> On 31 Dec 2011, at 4:56pm, Ivan Shmakov wrote:
>> The integers could take up to 32 bits long, but I deem them likely
>> to “cluster”, like, e. g.: 1, 1, 1, 1, 2, 2, 2, 3, 3, 3, 101, 101,
>>>>> Roger Binns writes:
>>>>> On 30/12/11 20:10, Ivan Shmakov wrote:
>> The problem is that I have a table, each row holding something like
>> 64 bytes of data (of BLOB and INTEGER types), which don't seem too
>> compressible, but these rows
>>>>> Simon Slavin writes:
>>>>> On 31 Dec 2011, at 7:11am, Ivan Shmakov wrote:
>> Download the code and prebuilt DLL.
> It includes both. In other words, the vfs_compress.c file you asked
> for is in there.
Indeed
>>>>> Simon Slavin writes:
>>>>> On 31 Dec 2011, at 4:10am, Ivan Shmakov wrote:
>> I wonder, if anyone has any experience with [1] (and where could one
>> get the vfs_compress.c file, BTW?), or any other transparent
>> compression implementat
I wonder, if anyone has any experience with [1] (and where could
one get the vfs_compress.c file, BTW?), or any other transparent
compression implementations for SQLite?
The problem is that I have a table, each row holding something
like 64 bytes of data
>>>>> Pavel Ivanov writes:
>>>>> On Wed, Oct 12, 2011 at 11:12 AM, Ivan Shmakov wrote:
[…]
>> Consider, e. g.:
>> sqlite3_value *a
>> = sqlite3_int64_value (1);
>> assert (a != 0);
>> sqlite3_value *b
>> = sqlite3_text_
>>>>> Igor Tandetnik writes:
>>>>> Ivan Shmakov <i...@gray.siamics.net> wrote:
>> I wonder, is it possible to create sqlite3_value * from scratch
>> from within SQLite library's user code?
> There's a circuitous route that leads there.
I wonder, is it possible to create sqlite3_value * from scratch
from within SQLite library's user code?
The idea is as follows. The current dbtriv.c [1] code has a
db_triv_exec_bound () function, used roughly as follows:
/* sqlite3 *db; */
const char *sql
>>>>> Jim Morris writes:
>>>>> On 10/6/2011 10:43 PM, Ivan Shmakov wrote:
>>>>> Jim Morris writes:
[…]
>>> INSERT INTO fts3_table (a,b,c)
>>> SELECT 'an A','a B','a C'
>>> WHERE NOT EXISTS
>>> (SELE
> Simon Slavin writes:
> On 9 Oct 2011, at 3:57am, 张一帆 wrote:
>> i have some data like "a and b or c ...",there will be a word 'and'
>> or 'or' which means the Logical relations between each item.
> If you have "a and b or c" does that mean
> (a and b) or cOR
> a and (b or c)
> Jim Morris writes:
> The recent thread may relate: "[sqlite] Is there an efficient way to
> insert unique rows (UNIQUE(a, b, c)) into an fts3 virtual table?"
> INSERT INTO fts3_table (a,b,c)
> SELECT 'an A','a B','a C'
> WHERE NOT EXISTS
> (SELECT DISTINCT a,b,c
> FROM fts3_table
>
>>>>> Igor Tandetnik <itandet...@mvps.org> writes:
>>>>> Ivan Shmakov <i...@gray.siamics.net> wrote:
>> This structure is, obviously, could just as well be represented
>> with, e. g.:
>> CREATE TABLE "foo" (
>&g
Well, this case is somewhat weird. I have a number of tables
like:
PRAGMA "foreign_keys" = 1;
CREATE TABLE "foo-L" (
key INTEGER PRIMARY KEY
REFERENCES "foo" (key),
value INTEGER NOT NULL);
Which are tied to a single table, like:
CREATE TABLE
>>>>> Igor Tandetnik writes:
>>>>> Ivan Shmakov <i...@gray.siamics.net> wrote:
>>>>> Tobias Vesterlund writes:
>>> Is it possible to get the highest value in a "limited column" when
>>> using LIMIT?
>> Su
> Tobias Vesterlund writes:
[…]
> If I do SELECT max(id) FROM t; it will return 99.
> If I do SELECT id FROM t WHERE id > 0 LIMIT 10; it will return
> 1,2,3,4,5,6,7,8,9,10
> But If I do SELECT max(id) FROM t WHERE id > 0 LIMIT 10; it will
> return 99.
> My logic, which may be flawed
> Pete Helgren writes:
> I may end up going this direction, at the moment I am not having much
> luck with the conditional copy in Busybox. Your suggestion:
> cp -n newdatabase.db /data/newdatabase.db
> Isn't supported in the version of Busybox that I am running. Also
> the script
>>>>> Roger Binns writes:
>>>>> On 08/16/2011 04:59 PM, Ivan Shmakov wrote:
[…]
>> Also, are the .dump and .read commands implemented as part of
>> the sqlite3 binary, or are they part of the library?
> They are part of the standalone shell (i
> Tarun writes:
[…]
> I planned to execute query that works on SQL ROWNUM option
> "select * from employee2 where rownum > 1 and rownum < 2"
Perhaps:
SELECT * FROM employee2 ORDER BY oid LIMIT 1 OFFSET 1
> but i m getting error from sqlite3 that "no such
>>>>> Ivan Shmakov writes:
>>>>> Roger Binns writes:
[…]
>> Consequently if you had a trigger pulling a stunt like this, your
>> code could try to insert a blob and silently (wrongly) end up with a
>> string. SQLite won't even complain if th
>>>>> Roger Binns writes:
>>>>> On 08/17/2011 09:25 PM, Ivan Shmakov wrote:
>> Somehow, I've assumed that sqlite3_bind_blob () will bind a
>> parameter to a blob.
> It does. There are no affinity rules that will cause otherwise.
> There are
>>>>> Roger Binns writes:
>>>>> On 08/16/2011 04:59 PM, Ivan Shmakov wrote:
>> In the sqlite3's .dump command's output, the binary blobs may either
>> be represented as hexadecimal X''-literals, or as text strings.
[…]
> I suggest using typeof
In the sqlite3's .dump command's output, the binary blobs may
either be represented as hexadecimal X''-literals, or as text
strings.
I wonder, how do I force sqlite3(1) to exclusively use the X''
representation?
Also, are the .dump and .read
--- "Brandon, Nicholas (UK)"
<[EMAIL PROTECTED]> wrote:
>
> Is there a way to serialise a memory DB so that it
> can be sent over a
> network socket and re-opened on another computer as
> a memory DB?
>
> I was thinking of using a SQLite table as a
> configuration system (like a
> .ini file)
--- Night Media LTD <[EMAIL PROTECTED]> wrote:
> Hello John, and thanks for the idea.
>
>
>
> But PHP DB is only an abstraction layer, it need a
> sqlite extention to work
> with sqlite database. And this extension only exist
> at present in pecl of
> The sqlite 2.
How did you come to this
--- Night Media LTD <[EMAIL PROTECTED]> wrote:
> Its incredible that a big language as PHP cannot
> have the lastest version of
> sqlite running with...
Maybe the time has come to ask you why do you need the
latest version of sqlite? Version 2.8 is widely used
and as far as I can see works ok
--- Night Media LTD <[EMAIL PROTECTED]> wrote:
>
> Release What has changed?
>
> 1.0.1 - Updated libsqlite in ext/pdo_sqlite to
> 3.2.8. (Ilia)
>From the source of config.m4 in ext/pdo_sqlite:
--with-pdo-sqlite[=DIR] PDO: sqlite support. DIR is
the sqlite base directory, the bundled sqlite
--- Night Media LTD <[EMAIL PROTECTED]> wrote:
>
>
> Already tested but this not worked.
>
> Because in fact pdo_sqlite look have is own sqlite
> library into
> Php_source_dir/ext/pdo_sqlite/sqlite
I was talking about the PECL PHP extension. Don't know
about the bundled one.
> In any case we seem to be settling to a long term
> sustained rate of
> about 40 flushes per second for WinXP. Since SQLite
> is getting only 10
> inserts per second, it seems to me that SQLite must
> be doing about 4
> flushes per insert. Does that seem right to you
> Richard?
For what
--- Dennis Cote <[EMAIL PROTECTED]> wrote:
> All,
>
> More mysteries. To investigate this low insert
> performance under WinXP I
> wrote a simple test program that loops writing one
> character to a file
> and then flushing the file. The strange thing is
> that it seems to
> alternate between
> > profile results with dirty pages fix:
> >
> > % cumulative self self
> total
> > time seconds secondscalls ms/call
> ms/call name
> > 9.20 0.31 0.31 100011 0.00
> 0.03 sqlite3VdbeExec
> > 7.42 0.56 0.25 4849544 0.00
--- Dennis Cote <[EMAIL PROTECTED]> wrote:
> I made a modified version of your test program. It
> uses the preferred
> prepare/bind/step/finalize call family to execute
> the SQL. This way it
> only parses the SQL once, and executes it many
> times, each time using
> different parameter
> Does it only happen with a :memory: database or even
> if you use a
> file?
When using a file the difference is much smaller, but
still there: ~70 qps with sqlite3, ~90 qps with
sqlite2.
__
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the
--- Erik Jensen <[EMAIL PROTECTED]> wrote:
> Does it only happen with a :memory: database or even
> if you use a
> file?
I'll test it this evening (but I need a :memory:
database for my application)
> With version of the v3 lib did you use?
It's 3.3.5.
> I'm asking because i noticed a similar
> Testing is difficult to do correctly. As several
people
> noted on this list just today the first time they
ran
> a query it had much different
> performance than subsequent
> runs of the query. Did you run these tests more
> than one time? What's your environment?
This is not a "first time"
hi
I noticed that function sqlite3_step() is very slow when i want to fetch
query with join(s).
For example :
create same table t (a int, b int, c int ... );
and insert into t large numbers of records, (about 1)
time of fetching select * form t limit 0,100 is this same what select
*
Hi,
Is there any way to skip rows in prepared statement and jump to next, sth
like moveto (in sqlite3) ??
Why I have to use LIMIT in SELECT when I need use only OFFSET ?
Thanks
Iv
yes, it is works with LccWin32 ! you have to Add all files to Project &
build!
Regards
I. Dimitrov
From: Ulrik Petersen <[EMAIL PROTECTED]>
Reply-To: sqlite-users@sqlite.org
To: sqlite-users@sqlite.org
Subject: Re: [sqlite] Newbie help
Date: Tue, 18 Jan 2005 13:02:31 +0100
MIME-Version: 1.0
hi,
in DLL case of sqlite, do i need to call sqlite_freemem() after
sqlite_exec()/sqlite_get_table(), or only after sqlite_open() , after
error?
Ivan
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hi
is there sth like cursors ? (DECLARE CURSOR FOR SELECT ;) and
FETCH,MOVE ?
thanks
bye
ivan
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hi
how can i create vdbe for same special sql query, then check how many row
a will get, and for example move to row 100 and fetch 20 rows ,
its could be just sql cursor but i didn't find it in sqlite ..
what can i do about it ?
thanks :)
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