That worked thanks Igor.
On 16 May 2013 15:33, Paul Sanderson wrote:
> Rob yes thats correct
>
> Igor - thanks I'll give that a go
>
>
>
> On 16 May 2013 14:51, Rob Richardson wrote:
>
>> First idea: include a subject line.
>>
>> I'm not 1
> I'm guessing you wanted to say:
> " For those entries in table1 where there is a null in t1..."
>
> Is that right?
>
> RobR
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I have two tables of the form
create table1 (id1 int, t1 text)
create table2 (id2 int unique, t2 text)
the data in table 1 is such that some values for t1 are NULL
ID1 can contain duplicates
ID2 is unique and for every instance of ID1 in table1 there will be a
corresponding ID2 entry in table2
t
Actually, to be more accurate, the internal storage may be far from a float
(as in IEEE double) but a divide on an integer-looking value will certainly
be done with floating point math.
On Mon, May 13, 2013 at 6:13 PM, Paul van Helden wrote:
>
> I should have asked you for (1,2,20) as we
> I should have asked you for (1,2,20) as well and we could see whether it
> outputs '10' or '10.0'. But yes, it would appear that in Oracle, NUMERIC
> means FLOAT.
>
> Of course it does! All the others too.
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Tim, Simon & Darren, if you read my whole OP you will see that I've
discovered this: use REAL instead. My point is that the behaviour of a
NUMERIC column is not intuitive and gives mixed results which wouldn't be a
problem if the division operator could be modified. My suggestion cannot be
too outl
On Sun, May 12, 2013 at 1:54 PM, Michael Black wrote:
> PRAGMA INTEGER_DIVISION would probably not have saved you this bug as you
> would not have known to turn it on (default would have to be OFF for
> backwards compatibility).
I will use it on every connection I make in future to avoid futur
don't know this, as I'm sure most
regular users don't, it can really burn you. I don't mind the conversion to
integer, but then 1/2 should be 0.5.
On my wishlist: PRAGMA INTEGER_DIVISION = off;
I would use it all the time. Yes "feature creep" I can hear you
> A delared type of NUMBER(10,2) has NUMERIC affinity, which means that
> SQLite will attempt to store (string) values as integers first and floats
> second before giving up and storing strings.
>
This has nothing to do with my reply and I understand how it works.
>
> You do realize that there ar
>
>
> What do you mean, select precision? The double value you pass to
> sqlite3_bind_double() will be used as is. Are you saying you want to round
> it first? Then go ahead and do that - I'm not sure what that has to do with
> SQLite.
> --
>
It is an issue with SQLite because the values in NUMBER(
Hi All,
We've got some trouble with FTS4 queries taking too long in which we're looking
for a subset of matching records in the FTS table, as narrowed by a non-FTS
table.
CREATE TABLE metadata( key AS INTEGER PRIMARY KEY, sectionID AS INTEGER );
CREATE INDEX sectionIdx on metadata(sectionID)
into a build of
the sqlite shell, without modifying the shell sources?
Thanks!
-Paul
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ping to do, but I
don't quite see the pattern of when FTS tables can co-mingle with regular
tables in queries. Could someone help clarify the behavior of when MATCH can
be used and when it can't when joining FTS and regular tables?
Thanks!
-Paul
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be a
subset of those results.
It looks like I could programmatically parse the output of the offsetsfunction
to find this info and manually filter my results, but is there a way to set up
the query so it does the filtering for me, and only returns results that start
at byte offset 0 in the c
Try this:
SELECT Sentences FROM T1 JOIN T2 ON T1.Sentences LIKE
CONCAT('%',T2.Terms,'%')
Paul
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Rob Richardson
Sent: Tuesday, March 26, 2013 10:27 AM
To: G
Yes thanks Kevin
Dull question and I was just coming back here to say I have sorted it.
Thanks anyway :)
On 13 March 2013 17:59, Kevin Martin wrote:
>
> On 13 Mar 2013, at 17:44, Paul Sanderson wrote:
>
> > I want to join two table by doing a select in the form
> >
ounty from zip where state = 'AZ' returns 82,011records.
Select Distinct does not change the result.
The SQLite3 ODBC Driver does not have this issue.
Thank you,
Paul
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Hmm works OK at an sqlite prompt but not when I pass the query though a
data access component
On 23 February 2013 11:05, Clemens Ladisch wrote:
> Paul Sanderson wrote:
> > Works well summing the columns but I don't get a 'tot' label I, get
> >
> > 1
Thank You
Works well summing the columns but I don't get a 'tot' label I, get
1 54 3
2 26 4
3 56 8
0136 15
On 22 February 2013 23:20, Clemens Ladisch wrote:
> Paul Sanderson wrote:
> > SELECT cat, COUNT(*) AS occ, COUNT(DISTINCT te
I have the following query that produces a summary table
SELECT cat, COUNT(*) AS occ, COUNT(DISTINCT tes) AS uni, COUNT(tag) AS
tagged FROM rtable WHERE qu > 0 AND qu < 4 GROUP BY qu
The table would look something like
1 54 3
2 26 4
3 56 8
I want to modify the above sql
That did the job - Thank You
On 18 February 2013 18:15, James K. Lowden wrote:
> On Mon, 18 Feb 2013 17:02:53 +
> Paul Sanderson wrote:
>
> > nc
> > 1a
> > 2a
> > 3a
> > 4b
> > 5b
> > 3b
> > 4b
>
nc
1a
2a
3a
4b
5b
3b
4b
2b
3a
5b
2b
I have a table as above
I want to create a summary table that shows in the first column the total
number of occurrences of a value in the first column (n) and in the second
column for each value in n a count of t
I have a user who has a locked database. I don't know why the db is locked
but suspect either he killed the program when it was adding an index or my
program crashed (he was using a beta version). Irrespective of wghich he
has a db that is locked and I'd like to unlock it.
My database would normal
This is a fast way to load data.
sqlite3.exe C:\\Your Dir\\dbname.db mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Paul Sanderson
Sent: Tuesday, February 05, 2013 2:32 AM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] populating a table as quickly as possible
Currently
Currently ading 5000 at a time, will try increasing to 20 and 50K and see
what happens.
Just one table - but interesting
On 4 February 2013 18:24, Dominique Pellé wrote:
> Paul Sanderson wrote:
>
> > I want to populate a large table (millions of rows) as quickly as
> possib
currently using :
journal_mode = off
page_size=16386
cache_size = 1
synchronous = off
I load lots of similar data sets (each into a separate db) and load time is
definitely an issue. There are processing delays and loading a db can take
30+ minutes, if I can shave off even a few minutes on eac
Thanks Richard that worked
On 1 February 2013 11:23, Richard Hipp wrote:
> The expression "x NOT IN (something-that-contains-NULL)" is always false.
> I suggest you add an additional term to the WHERE clause of the subquery:
> "... AND md5 NOT NULL".
>
> O
even easier - thank you.
Paul
On 1 February 2013 11:46, Simon Slavin wrote:
>
> On 1 Feb 2013, at 10:12am, Paul Sanderson
> wrote:
>
> > I will know the name of the index - I just need to check that it has been
> > created.
>
> Oh, in that case just submit the &
Thank You
On 1 February 2013 10:38, Roger Binns wrote:
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA1
>
> On 01/02/13 02:12, Paul Sanderson wrote:
> > I will know the name of the index - I just need to check that it has
> > been created.
>
> Just use pragm
I will know the name of the index - I just need to check that it has been
created.
On 1 February 2013 00:09, Simon Slavin wrote:
>
> On 31 Jan 2013, at 10:57pm, Igor Tandetnik wrote:
>
> > On 1/31/2013 5:45 PM, Paul Sanderson wrote:
> >> Is it possible to ascertain if
etnik wrote:
> On 1/31/2013 2:33 PM, Paul Sanderson wrote:
>
>> My query is
>>
>> select fileref from rtable as r where vsc > 0 and isgraphic = 1 and not
>> exists (select md5 fr
>> om rtable as r1 where r.md5 = r1.md5 and isgraphic = 1 and vsc = 0);
>>
Still playing with this
I have the following table and I run the following query - the results of
which are what I expect
name, num, md5
sqlite> select * from rtable;
$RmMetadata|0|8465-CEEF-126A-0F04-1EDC-1D7B-331F-9279
$RmMetadata|1|8465-CEEF-126A-0F04-1EDC-1D7B-331F-9279
$RmMetadata|2|8465-CE
Thanks all
All columns in the query are indexed.
I'll try teh suggestions and see how they perform.
On 31 January 2013 19:54, Igor Tandetnik wrote:
> On 1/31/2013 2:33 PM, Paul Sanderson wrote:
>
>> My query is
>>
>> select fileref from rtable as r where vsc
242-E734-B125-D02F-A7F0-DC29
> file1|8|01EE-7E2E-2242-E734-B125-D02F-A7F0-DC29
> sqlite> SELECT * FROM files WHERE hash NOT IN (SELECT hash FROM files WHERE
> setid=0) group by hash;
> file1|8|01EE-7E2E-2242-E734-B125-D02F-A7F0-DC29
> file1|6|0546-4667-5A69-6478-FC97-6F27-840D-7D62
&
jpg',4,'890B-4533-447E-6461-070E-FDB7-799E-1FB8');
> sqlite> SELECT * FROM files WHERE hash NOT IN (SELECT hash FROM files WHERE
> setid=0);
> 1.jpg|4|890B-4533-447E-6461-070E-FDB7-799E-1FB8
>
>
> -Original Message-
> From: sqlite-users-boun...@sqlit
ich is great and solves my problem, but I cant see why the first query
doesn't work.
On 30 January 2013 21:37, Paul Sanderson wrote:
>
> Thanks All - duplicated means the content is the same as well as the name,
> different is the filename is the same but the content is differe
Thanks All - duplicated means the content is the same as well as the name,
different is the filename is the same but the content is different.
I need to refine my query to produce only one copy of any that is not in
set 0
file10ABCD
file11ABCD
file13EF01
file20BCE2
As I understand, it's tricky to get FTS to do substring matching, no? What's
the best way to do that?
Thanks!
Paul
From: Roger Binns
To: General Discussion of SQLite Database
Sent: Friday, January 25, 2013 12:01 PM
Subject: Re: [sqlite] Substr
posite index that has all those columns speed up a LIKE
query across all the columns in that index? That is, we'd like it to only have
to do one index scan, rather than multiple table scans - will a composite key
help with that?
Any other sugges
Valgrind suppression
files to be used with SQLite using programs like PyGObject has [1]?
Thanks and sorry if I wrote nonsense,
Paul
[1] http://www.midori-browser.org
[2] https://mail.gnome.org/archives/commits-list/2010-December/msg11251.html
signature.asc
Description: This is a digitally signed
Am Sonntag, den 02.12.2012, 22:49 +0100 schrieb Paul Menzel:
> using Debian Sid/unstable with self-built Evolution 3.4.4 and
> libsqlite3-0 3.7.14.1-1, Evolution crashed with a segmentation fault.
>
> pool[15522]: segfault at 5 ip b69bafe3 sp 8acf0850 error 6 in
> libs
Dear SQLite folks,
Am Sonntag, den 02.12.2012, 22:49 +0100 schrieb Paul Menzel:
> using Debian Sid/unstable with self-built Evolution 3.4.4 and
> libsqlite3-0 3.7.14.1-1, Evolution crashed with a segmentation fault.
>
> pool[15522]: segfault at 5 ip b69bafe3 sp 8acf085
ad (arg=0x8acf1b70) at pthread_create.c:304
__res =
__ignore1 =
__ignore2 =
pd = 0x8acf1b70
now =
unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1228271628, 0,
4001536, -1966140728, 2098
Dear list administrators,
please allow signed messages to be sent to the list.
I got: »The message's content type was not explicitly allowed«
Thanks,
Paul
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9|868763
854808|854809
|854808
sqlite> SELECT c FROM mytable WHERE c NOT IN (SELECT IFNULL(b,0)
FROM mytable);
868763
Regards,
Paul.
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Sorry - generally the sorts will be on one column - but they may choose at
a later time to sort by another column. They will (but rarely - sort by two
or more columns at the same time).
On 26 November 2012 14:20, Clemens Ladisch wrote:
> Paul Sanderson wrote:
> > My software create
Thanks for the replies - I'll try and read through them all thoroughly a
bit later.
But for now a bit of background.
My software creates a large table containing anything between about 250K
and Millions of rows when first run, the indexes are created immediately
after the table is populated and t
turn. This
would save on the overhead of reading the entire table for each column.
On 24 November 2012 14:40, Clemens Ladisch wrote:
> Paul Sanderson wrote:
> > Whilst building a new app I created an index on every column some of
> which
> > were empty.
>
> And with "
don't really have an idea of how sqlite works internally, but this seems
like an area where there could be some optimisation - or anm I totally off
track?
--
Paul
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he same
> iDevice to access them because that other app will be looking inside its own
> space.
>
> Simon.
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> __
That's a promising project; I hope it reaches maturity.
I assume your modified tokenizer did a similar thing, like tokenizing "full
text search" as [full, text, search, ull, ll, l, ext, xt, xt, earch, arch, rch,
ch, h]?
What worked and what did not work
main table?
The number of unique tokens we have is small compared to the total number of
records, so if it only scanned the token index it would in theory help.
Thanks
Paul
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>
> It would be possible to implement TRUNCATE TABLE on top of that, but
> this would be only syntactic sugar.
>
..or better portability. TRUNCATE TABLE works (since only a few years)
nearly everywhere. So when writing portable applications it seems a bit
silly to make an exception for SQLite if t
Hi,
TRUNCATE TABLE is now in the SQL:2008 standard.
http://en.wikipedia.org/wiki/Truncate_(SQL) It would make portability
easier if SQLite understood TRUNCATE TABLE to be the same as DELETE FROM
without WHERE.
Yes? No?
Paul.
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unlink() the memory
because we know in what order our processes start & stop. But
presumably you already have that issue in the mmap() version.
Paul.
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I am using this feature a lot. My applications log all changes to the
database, SQL and parameters. So I have an attached log.db with a field for
the SQL and then 32 typeless columns for the parameters. Works like a charm!
On Sun, Sep 23, 2012 at 12:37 PM, Baruch Burstein wrote:
> I am curious ab
On 17 September 2012 17:23, E. Timothy Uy wrote:
> Is there a way to figure out which of the terms in an IN operator
> actually hit? Perhaps making a temp table is the only way. Any help
Do you mean...
SELECT DISTINCT col FROM tbl WHERE col IN ('a', 'b',
to the database, some of which may match our query.
We'd like update the query results view with new records as they're added,
without having to repeat the whole query and weed out the results we're already
showing?
Any suggestions are appreciated.
-Paul
___
On Mon, Aug 6, 2012 at 2:58 PM, Tilsley, Jerry M.
wrote:
> Guys,
>
> I'm sure this is a pretty lame question, but my thinking hat is
> malfunctioning this morning. How can I select all rows from a table where
> a specific column is NOT UNIQUE? Table has three columns (charge_code,
> mnemonic, de
ch column in the
named table". Obviously this doesn't tell you anything about
the schema of the table, just a '1' or a '0'.
Regards,
Paul.
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>
>
> Then why do you keep hammering on the idea that SQLite is somehow
> incorrect or wrong?
>
> You've explained what you're trying to do. We've explained there is
> a better way to do that, that also happens to provide the correct
> answer on all platforms, AND likely runs faster-- es
On Tue, Jul 3, 2012 at 3:03 PM, Black, Michael (IS)
wrote:
> And Oracle says the opposite:
>
> Yet they all give the same answer when done with "update testtable set
> testrow=null where testrow not null;
>
> You keep hammering this one, it is obvious, I understand, THANKS! What if
the SET and WH
On Tue, Jul 3, 2012 at 2:45 PM, Black, Michael (IS)
wrote:
> What's better is that it tells you what you asked for...not what you think
> you asked for...which it does.
>
I asked for changes :-)
>
> You've already been shown the correct solution...a WHERE clause...
>
> I've done that even before
On Tue, Jul 3, 2012 at 2:43 PM, Paul van Helden wrote:
>
>> The statement "UPDATE table SET column=NULL" updates every row in the
>> table. The fact that some rows may already have a NULL in that
>> column is not important.
>>
>> Well, it is impo
>
>
> The statement "UPDATE table SET column=NULL" updates every row in the
> table. The fact that some rows may already have a NULL in that
> column is not important.
>
> Well, it is important to me, the word "change" means before != after :-)
___
n it comes to triggers?
On Tue, Jul 3, 2012 at 2:19 PM, Yuriy Kaminskiy wrote:
> Paul van Helden wrote:
> > Is this correct? Should update triggers not only fire for actual
> changes? I
> > have a large table with a column which contains all NULL values except
> for
> &
Hi,
Is this correct? Should update triggers not only fire for actual changes? I
have a large table with a column which contains all NULL values except for
4. I expected an UPDATE table SET column=NULL to only fire 4 triggers,
except it fires for every row.
Thanks,
Paul
Hi there,
We are considering using the SQLite Encryption Extension in one of our
products, and are wondering what the performance characteristics of it are?
Does the encryption algorithm affect performance? Any stats on this you might
have would be useful.
Thanks!
-Paul
On 12-Jun-2012 08:08, Richard Hipp wrote:
On Tue, Jun 12, 2012 at 7:04 AM, Paul Medynski wrote:
Hi Kevin,
I understand the 'NOT NULL' column constraint and the syntax diagram and
text describe it quite well. What isn't described is whether or not
specifying simply 'NULL
documentation doesn't mention it
explicitly.
Thanks,
-Paul
On 11-Jun-2012 15:35, Kevin Benson wrote:
On Mon, Jun 11, 2012 at 10:35 AM, Paul Medynski wrote:
Hi folks,
I notice that the syntax diagram for 'create table' shows the
'column-constraint' definition as r
3 3.7.3 or 3.7.9, I can create a table and
specify any column as "Foo null", and it works as expected
allowing the column to contain null values.
Is the syntax diagram simply out of date, or am I doing something that
appears to work, but will bite me in the end? :)
Thanks,
-P
I have a couple of table seach of which has one column but millions of
rows, the column is a text column.
I need to return all of the rows in table B that are not present in table A
What is the most efficient way of doing this?
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ey will be once I have an interesting study.
Thanks,
Paul
On 5 May 2012 06:14, Dan Kennedy wrote:
> On 05/04/2012 11:21 PM, Paul Thomson wrote:
>>
>> I am working on a tool that (among other things) can detect data
>> races, including file access races. I have detected
thread when the race occurs, unless it becomes
obvious that the above functions cannot race. What is best way to
provide these files? (attachments? upload to a website and provide a
link?)
Thanks,
Paul
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Hello!
I just found a typo in http://www.sqlite.org/fileformat.html
Search for "stored with the must significant byte first" that should read:
"stored with the most significant byte first".
A one letter typo, no big deal.
--
Barbu Paul - Gheorghe
Common sense is not so com
Thanks all, dates are stored internally as integers
--
Paul
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is
1 1/1/2011
2 1/1/2011
2 2/1/2011
3 1/1/2011
3 2/1/2011
3 3/1/2011
5 7/1/2011
I want to be left with
1 1/1/2011
2 1/1/2011
3 1/1/2011
5 7/1/2011
--
Paul
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On 09 November 2011 15:32, hmas wrote:
> sqlite> select hex(foocol) from footable where foocol like
> '98012470700566';
> 39393939393830313234373037303035363600
It looks like there's an extra 00 on the end.
x'3900' != x'39'
Paul.
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> If you could use DTrace you could really find out, but since we have
How about something like sysinternals diskmon?
http://technet.microsoft.com/en-us/sysinternals/bb896646
That should give you (OP) some indication of what disk activity
is going on.
P
On 02 November 2011 16:42, Fabian wrote:
> Maybe there is a very simple explanation, I just can't think of any.
A stateful antivirus that does lots of heavy processing when you first
open the file?
Have you tried:
1) Reboot
2) Wait 10 minutes (don't even touch the computer)
e given was generated from the core
file with gdb then in gdb I'd try
frame 10
print *dbStatementsIter
to see the query to see if that gives any clues. It might
need "gdb-stl-views" or similar installed to make any sense.
Regards,
Paul.
- anyway, I wouldn't use it. If I could go with
a scripting language, it would be Python - vastly superior IMHO
to Perl - YMMV.
It's shell scripting that I want to be able to do - remember my manager?
Thanks for your input.
Paul...
> Puneet Kishor
ption would be slower than
the current one - only if the user chose it though.
> Feel free to write it, and contribute your code.
I consider anything more sophisticated than "Hello World" to
be advanced C! ;) Thanks for your input.
Paul...
might be a good idea.
Paul...
--
lineh...@tcd.ie
Mob: 00 353 86 864 5772
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ts data into SQLite,
the third sleep 20 &c.
I know it's an appalling hack, but could be useful to somebody?
Sincères saluations.
Paul...
> patpro
--
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2011/9/27 Patrick Proniewski :
>> Take a look at a utility called dstat.
> no, it's linux only.
But it is written in Python - so it should be relatively
transportable. I've even
managed to modify the code myself - and if I can do it, anybody can! 8-)
Paul...
> pa
anyway? I'm interested because I've
done something similar.
Paul...
> patpro
--
Hmmm a "life": wonder where I can download one of those?
lineh...@tcd.ie
Mob: 00 353 86 864 5772
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2011/9/27 Patrick Proniewski :
> That's what I do, but I think using a loop is ugly, and I would like to find a
> way to feed data continuously into sqlite.
cron
Paul...
> patpro
--
Hmmm a "life": wonder where I can download one of those?
lineh...@tcd.ie
iostat say yesterday?".
When I have it fully working with Oracle (XE 10), I plan to get it working
with SQLite - it should be reasonably easy using .csv and cron jobs.
Paul...
--
Hmmm a "life": wonder where I can download on
om Oracle - it's free to use and is *_very_* nice for doing just what
you want, albeit manually.
Paul...
--
Hmmm a "life": wonder where I can download one of those?
lineh...@tcd.ie
Mob: 00 353 86 864 5772
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Ahh
I was sure that this was being created :(
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-TREE FOR ORDER BY
Which seems to indicate that the b-tree is still being created (I'll
test shortly, but running another long test at the moment)
On 21 September 2011 14:33, Igor Tandetnik wrote:
> Paul Sanderson wrote:
>> select ID FROM rtable WHERE search > 0 and MD5 is NULL an
The query below takes about 10 mins to run, any idea why this would be?
select ID FROM rtable WHERE search > 0 and MD5 is NULL and isf = 0 ORDER BY afo
The same query without the ORDER BY takes a few seconds.
select ID FROM rtable WHERE search > 0 and MD5 is NULL and isf = 0
There are approxima
incères salutations.
Paul...
> D. Richard Hipp
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fox extension - I think it's great!
Paul...
> Madhan Kumar R
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Hmm thanks Roger
Table could have a few million rows, i'll have a play and see what the
run time is. The relevant column is indexed
On 20 August 2011 17:14, Roger Andersson wrote:
> On 08/20/11 05:42 PM, Paul Sanderson wrote:
>> Hi all
>>
>> I am trying to create a qu
Hi all
I am trying to create a query that works to craete a subset of a table
based on duplicate items
Examples work best so consider the contrived table with the following rows
10 socata
7 socata
13 cessna
2 piper
7 piper
55 piper
1 diamond
I want to see the subset that is
10 socata
7 socata
2
> I can at least store all the data, for the cases I have tested till
> now (600 billion entries for now), but it is awfully slow.
I'm not surprised. Maybe you should consider some sort of
partitioning scheme? Take a look at VoltDB.com - it might
be an approach?
Paul...
--
Hmmm.
QL or PL/SQL is SQL, it is an
"extension", albeit a non-proprietary one.
Having said that, I will take my punishment like a man and admit
to being wrong in this context - apologies for any offence/confustion
caused!
> Have a nice day.
Agus tusa!
Paul...
> Danny
--
2011/7/2 Kees Nuyt :
> Just feed it the SQL statement:
> PRAGMA jounal_mode=WAL;
I'm not being nasty here, but that is *_not_* an SQL statement.
It is a C directive (or, at least, that's what I think it is!).
Rgs,
Paul...
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