ta DB (16 columns), the inserts were generated from
>.dump in the shell, about 45MB of input data
>so
>
>BEGIN;
>lots of inserts
>COMMIT;
>
>Run on a laptop i7 with SSD (not that should make any difference to
>the relative performance)
>If I could get your re
Interesting. That is adding 30% or so to process the trigger. When I do (this
is to a "memory" database):
SQLite version 3.25.0 2018-06-11 01:30:03
Enter ".help" for usage hints.
Connected to a transient in-memory database.
Use ".open FILENAME" to reopen on a persistent database.
sqlite> creat
list
>Subject: Re: [sqlite] sqlite.org website is now HTTPS-only
>
>On 10 Jun 2018, at 11:25pm, Keith Medcalf
>wrote:
>
>> Transport security increases the level of security since it
>prevents your ISP or other malicious poo-heads from tampering with
>the datastream duri
On Sunday, 10 June, 2018 14:27, George wrote:
>I don't feel safer running HTTPS everywhere as Google wants with a
>trust store full of certificates for companies, governments and
>corporations I have never personally met or even trust by name nor
>can I if I so desire disable when I want to. Or
sers-
>boun...@mailinglists.sqlite.org] On Behalf Of Keith Medcalf
>Sent: Saturday, 9 June, 2018 22:06
>To: SQLite mailing list
>Subject: Re: [sqlite] Idea: defining table-valued functions directly
>in SQL
>
>
>Do you have an appropriate index defined on both the parent and child
&
Do you have an appropriate index defined on both the parent and child keys?
.lint fkey-indexes
at a command shell prompt will tell you ...
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From:
create table templog
(
datestamp text collate nocase primary key,
centTemp REAL not null,
fahrTemp REAL
);
create trigger TempLogInsert after insert on templog
begin
update templog set fahrtemp = new.centTemp/9*5+32 where datestamp ==
new.datestamp;
end;
create trigger tempLogUpdate afte
No. GPS time is maintained as WEEKS since the GPS epoch and an offset into the
week (TOW -- time of week). There is an additional field that is the "offset
from UT1" (currently 11 seconds I believe). The receiver uses the information
to calculate UT1. There is, I believe, a flag that says t
SQLite does not have unsigned integers. All integers are 64-bit signed
entities, but may be stored in shorter integers on disk if the value fits.
This is an internal optimization and not visible externally.
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot
fic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Igor Korot
>Sent: Thursday, 7 June, 2018 20:19
>To: SQLite mailing list
>Subject: Re: [sqlite] Reset the cursor
>
>Hi, Keith,
>
>On Tue, Jun 5
Just tell wget --no-check-certificate in the command line. wget does not use a
certificate repository and you need to obtain and specify the expected root
manually. It will be no less secure than it was before (when using HTTP)
except that now it will use Transport encryption. Certificate ch
Have you tried the link at the end of every message?
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Dian
sqlite3BtreeBeginTrans() now has an extra parameter. sessions do not like this.
---
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lot about anticipated traffic volume.
___
sqlite-users mailing list
sqlite-users@mail
On Wednesday, 6 June, 2018 10:24, Bob Friesenhahn wrote:
> The build strategy for the Python APSW extension is an
> example of unwanted dependency and loss of control.
> Building of software from source code should always be
> under the complete control of the person who is performing
> the b
Most of them. In particular those that return (as in SELECT) data work either
way. Those that set things can only be used as a pragma.
Note that the table name is passed differently (in the case of pragma's
expecting an identifier).
It is an identifier in the case of a pragma statement, and
test
Loop 1, no reset, reset at 5
!
sqlite3_reset returns 0
Loop 2, After Reset
!
Loop 3, No Reset, Got SQLITE_DONE
!
sqlite3_reset returns 0
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message
r not thinking about this immediately.
>
>
>On Tue, Jun 5, 2018 at 6:38 AM, Igor Korot
>wrote:
>> Hi, Keith,
>>
>> On Mon, Jun 4, 2018 at 1:39 PM, Keith Medcalf
>wrote:
>>>
>>> Perhaps. In order for the sqlite3_errcode(db) to have any meaning
&g
018 12:15
>To: SQLite mailing list
>Subject: Re: [sqlite] Reset the cursor
>
>Keith,
>
>On Mon, Jun 4, 2018 at 12:59 PM, Keith Medcalf
>wrote:
>>
>> Yes, if it is 3.6.23.1 or earlier or the sqlite3 library was
>compiled with SQLITE_OMIT_AUTORESET you will get an SQ
t;, value);
>> continue;
>> }
>> printf("Error during stepping %d\n", rc);
>> rc = sqlite3_reset(stmt);
>> printf("sqlite3_reset returns %d\n", rc);
>> break;
>> }
>> }
>>
7 8 9 10 !
sqlite3_reset returns 0
---
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lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Keith Medcalf
>S
gt;From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Keith Medcalf
>Sent: Monday, 4 June, 2018 11:06
>To: SQLite mailing list
>Subject: Re: [sqlite] Reset the cursor
>
>
>>Currently running w/MSVC 2010 under Win 8.1.
>
>>I also
>Currently running w/MSVC 2010 under Win 8.1.
>I also presume you are testing under the latest SQLite source?
Yes, I believe so ...
SQLite 3.24.0 2018-06-02 19:14:58
1ecb3aa13de5c8dc611b814ff34010de0bd90aae73d88aa37a59c4627be4alt2
Using GCC (MinGW-w64 8.1.0) on Windows 10 Pro for Workstations
Works just fine for me ...
#include "sqlite3.h"
#include
void main(int argc, char** argv)
{
sqlite3* db = 0;
sqlite3_stmt* stmt = 0;
char* rest = 0;
int rc = 0;
int value = 0;
sqlite3_open(":memory:", &db);
rc = sqlite3_prepare_v2(db, "select value from generate_seri
Good idea but if there is no AUTOINCREMENT you can simply get the
min/max directly:
I think the following works (and for both + and - rowid's)
NB: The MaxRowID is not needed
with Rows(MinRowID, NumRows) as (select min(RowID) as MinRowID,
max(RowID) - min
Good idea but if there is no AUTOINCREMENT you can simply get the min/max
directly:
I think the following might work (and should work for both + and - rowid's)
with Rows(MinRowID, MaxRowID, NumRows) as (select min(RowID) as MinRowID,
max(RowI
Yes, and the database will store the data as entered/bound if it cannot be
converted to the requested storage type (column affinity).
This is VERY IMPORTANT for you to understand fully and completely including all
the rules for storage class and affinity conversions and how they are
determin
>On Thursday, 31 May, 2018 10:19, Dominique Devienne said:
>Given where the conversation is going, let me point out that many do
>not care one bit about the lib's size :)
>I'd much rather have an SQLite with tons of features, than forego
>those in the name saving a few bytes, to save a few bucks
In this case it makes no real difference. The select on the connection will
start a "read" transaction and the update on that connection will upgrade the
transaction to a "write" transaction. The transaction will complete when both
the select and the update(s) are complete and the select fina
or 1 thread...or 6000 threads...makes no difference whatever. Unless you
changed the default from SERIALIZED to something that does not apply.
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message
Why not encode (speak / say) what you want to do directly, rather than
prayerfully relying on implementation details --
select col1, col2 from mytable order by cast(body_size as float);
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traf
enne
>Sent: Thursday, 17 May, 2018 02:41
>To: General Discussion of SQLite Database
>Subject: Re: [sqlite] Is this really the best way to do this?
>
>On Wed, May 16, 2018 at 8:33 PM Keith Medcalf
>wrote:
>
>>
>> SELECT coalsce((select action
>>
SELECT coalsce((select action
from blocked
where mail='...'), 'OK') as action;
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:s
>OK, at the risk of exposing my lack of edification, I'm wondering if
>someone can explain why this simple test of unique column constraints
>doesn't work. At least it doesn't work as I expected it would (i.e.
>that
>the second insert would yield a unique constraint violation).
>
>create table t (
There is no LEFT join visible to anyone except someone who is in love with LEFT
joins without knowing what one is.
Your query is misformed. You proper query ought to be:
select *
from base b join derived d using (id)
order by id;
There is no b.id nor d.id in the output row. It is a figment
onnections
>is through shared cache.
>
>2018-05-15 0:27 GMT+02:00, Keith Medcalf :
>>
>>>2018-05-13 12:50 GMT+02:00, Techno Magos :
>>
>>>> Hello
>>
>>>> I do not have clear examples to post on this but would like to
>>>>
>2018-05-13 12:50 GMT+02:00, Techno Magos :
>> Hello
>> I do not have clear examples to post on this but would like to
>> report findings around multi threaded read access (single process) in a
>> large system that uses sqlite.
>> This may be a known issue/restriction of memory sqlite behaviou
>2. Running the same example on sqlite *file *(multi threaded mode;
>WAL journal) scales almost linearly; so 6 threads provide nearly 6xN
>throughput. Single threaded throughput is a bit slower (around 15-
>20%) than single threaded in-memory access (expected).
So, there is some "part" of the pr
Say Hi to Gene!
https://en.wikipedia.org/wiki/Amdahl%27s_law
So I believe what you are saying is something like this: If I take a child and
have it count as fast as it can then it can count to X in an hour. However, I
take the same child but have it count as fast as it can at five minute
st
You could probably use the one in Sqlite3 as well, rather than a third party
one ...
https://www.sqlite.org/src/artifact/a68d25c659bd2d89
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From:
This is a baby implementation of the master file merge from the early part of
the last century (after the stone knives but somewhat before bearskins).
Take two tables, one mounted on tape drive A, with output to tape drive B,
updated from a transaction file on tape drive C. Start Friday nigh
I have never run into this issue myself.
However, you do not specify the version or Platform (Windows , Linux
(plus distribution), Other (Apple iOS, MVS, BSD, etc).
Nor the version of CPython nor from whence it came (preloaded? version?
Downloaded and installed yourself? Built you
Again, requiring that both "id" and "name" are candidate keys. In which case,
since there has to be unique indexes to enforce that, one might use the more
straightforward:
select count(*) from table where name <= (select name from table where id=?)
order by name;
---
The fact that there's a
The constraint, obviously, being that "id" and "name" are each candidate keys
...
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.
create table data (id integer primary key, name text);
insert into data (name) values ('AAA'), ('ZZZ'), ('BBB'), ('WWW'), ('CCC');
select * from data;
1|AAA
2|ZZZ
3|BBB
4|WWW
5|CCC
select * from data order by name;
1|AAA
3|BBB
5|CCC
4|WWW
2|ZZZ
create table temp.ranked as select * from data ord
Yes.
Simply append the extension to the sqlite3.c source code. When you do this you
need to have the symbol SQLITE_CORE defined so that the extension calls the
sqlite3* entrypoints directly rather than through the indirection table. The
main sqlite3.c source should take care of this for you.
nticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of J Decker
>Sent: Thursday, 19 April, 2018 16:41
>To: SQLite mailing list
>Subject: Re: [sqlite] SQLite3 - Search on text field with \0 bi
Actually, nothing in the C or C++ world will "go past" the NULL byte since the
very definition of a C string is a "bunch-o-bytes that are non-zero followed by
one that is".
If you want to embed non UTF8 text you should be using a BLOB not TEXT. Text
means "an array of non-zero characters term
Richard,
The ARIN PPML has the same spammer harvesting their list to get subscriber
email addresses and replying with the same type of "spam" ...
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
I block by domain as in
*.dognuts
*.spammers
*.dating
*.evildoers
for basically every johhny-cum-lately domain (ie, that has not existed since
before 1995) -- one strike and the whole TLD is fileterd (as in packet routed
to the null0 interface). Then tere is the checks on SPF, protocol confor
https://sqlite.org/optoverview.html
15, the push down optimization. The BETWEEN clause is in error?
SELECT x, y, b
FROM t2
JOIN (SELECT DISTINCT a, b FROM t1 WHERE b BETWEEN 10 AND 20)
WHERE b BETWEEN 10 AND 10;
should probably be BETWEEN 10 AND 20;
---
The fact that there's a Highway to
The Query Planner should decide in the case of the MIN containing query that
the best solution is to traverse TheDate in order and return the first hit.
This may entail the creation of the necessary index if it does not exist and so
the two plans should be more or less identical.
However, if
t;
>Thank you very much!
>
>Just can't understand why the CASE method does not work?
>It can't be done with the CASE expression at all?
>
>2018-04-12 17:26 GMT+02:00 Keith Medcalf :
>>
>> Then Richard is correct (of course) ... which is a perfect
>
-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Keith Medcalf
>Sent: Thursday, 12 April, 2018 09:26
>To: SQLite mailing list
>Subject: Re: [sqlite] SELECT with CASE
>
>
>Then Richard is correct (of course) ... which is a perfect
>t
: [sqlite] SELECT with CASE
>
>Yes, this is what I am asking.
>
>2018-04-12 17:17 GMT+02:00 Keith Medcalf :
>>
>> The question you asked was:
>>
>> "Then how can I get only that date from the Dates table - which is
>> equal to the current date?"
>
re's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Csányi Pál
>Sent: Thursday, 12 April, 2018 09:10
>To: S
select TheDate from Dates where TheDate == date('now');
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Csá
You write the code as if it were a loadable extension.
If you compile "inline" (ie, appended to the amalgamation) the headers will
detect the SQLITE_CORE symbol being defined and generate direct calls rather
than indirect calls. There is really no need to change the code from the code
you w
qlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Ian Zimmerman
>Sent: Tuesday, 27 March, 2018 21:22
>To: sqlite-users@mailinglists.sqlite.org
>Subject: Re: [sqlite] json question
>
>On 2018-03-27 19:26, Keith Medcalf wrote:
>
>> Actually, it
>The point of JSON support in SQLite, IMHO, is that it allows for
>hierarchical data structures, not something that is easy to do in a
>relational table-based DBMS like SQLite otherwise.
Actually, it is very simple and straightforward to implement hierarchical
structures using Relational Databas
You never *need* to change SQLITE_CONFIG_MULTITHREAD. The default mode is
"serialized", which means that if you "accidentally" violate the serial
entrance requirements of a connection (by accessing it simultaneously on
multiple threads) that all hell will not break loose. This is achieved by
You have to build it first, or use a pre-built version.
MinGW does not appear to be a supported compiler on Windows.
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sq
CAN TABLE t1 USING INDEX b
>0|1|1|SCAN TABLE t2
>0|0|0|USE TEMP B-TREE FOR RIGHT PART OF ORDER BY
>
>After all, it’s attaching an entire table to each row in t1 in an
>order that’s already been worked out.
>
>From: Keith Medcalf<mailto:kmedc...@dessus.com>
>Sent: 24 March
Hint: Index entries must be unique. They are made unique by having the rowid
in the index (how else would you find the row from the index)?
if you asked for the data in an order that can be produced by an index without
a sort, then you will get the output without a sort.
select * from t1, t2
That index will not result in the ordering you asked for.
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of
>Sent: Friday, 23 March, 2018 18:20
>To: SQLite mailing list
>Subject: Re: [sqlite] sqlite3rebaser_* function declaration error
>
>Please try again with the latest and let me know whether or not the
>problem is fixed. Thanks.
>
>On 3/23/18, Keith Medcalf wrote:
>>
The forward references do not contain the SQLITE_API preface, yet the function
declarations do. This means that if you define SQLITE_API as static (ie, for
inclusion in APSW) then the rebaser functions cause the compiler to toss a
bunch of errors:
D:\Source\apsw\sqlite3.c:185554:16: error: st
Yes. Here is a stored procedure written in Python that implements a "stored
procedure" (that is, it is a procedure and it is indeed stored) that does an
"upsert" operation. You pass it the db connection object, the name of the
table, a dictionary of the PrimaryKey fields, and a dictionary of
ays a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Keith Medcalf
>Sent: Wednesday, 21 March, 2018 12:31
>To: SQLite mailing list
>Subject: Re: [sqlite] How to optimise a s
Or just try it with the superfluous outer join keyword (LEFT) removed since you
are really just doing an inner (equi) join and the outer join data is just
discarded (by your WHERE clause constraints) after it is generated anyway ...
---
The fact that there's a Highway to Hell but only a Stairwa
If you have multiple candidate keys for a single row that match more than one
row (or the alternate candidate keys match different rows), your application
should explode immediately!
There is no need to "decide" which row is the correct one to update, you are
already in a fatal error situati
Right you are Clemens:
SQLite version 3.23.0 2018-03-16 07:48:43
Enter ".help" for usage hints.
Connected to a transient in-memory database.
Use ".open FILENAME" to reopen on a persistent database.
sqlite> PRAGMA foreign_keys=OFF;
sqlite> BEGIN TRANSACTION;
sqlite> CREATE TABLE t (id int primary
Nor does there appear to be "column names" ... and this with the current tip of
the trunk.
SQLite version 3.23.0 2018-03-16 07:48:43
Enter ".help" for usage hints.
Connected to a transient in-memory database.
Use ".open FILENAME" to reopen on a persistent database.
sqlite> PRAGMA foreign_keys=OF
PAR is Parameters (calendar start and end)
RES is Results
from what I see anyway ...
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglis
;following is possible?
>
>CREATE TRIGGER users_after_insert AFTER INSERT ON users
>BEGIN
>CASE WHEN (SELECT count(*) FROM user_extras WHERE user_id =
>new.id)) =
>0 THEN
>INSERT INTO user_extras (user_id) VALUES (new.id)
>END;
>END;
>
>Thank
Typically none, though in very rare cases there may be one or two out of a
dozen or so tables.
Generally speaking, I have found no particular advantage in most circumstances
to having "integer primary key" with the "AUTOINCREMENT" property (that is,
guaranteed ascending unique assignment larg
On this page, 7th paragrph:
https://www.sqlite.org/lang_createtrigger.html
See that:
An ON CONFLICT clause may be specified as part of an UPDATE or INSERT action
within the body of the trigger. However if an ON CONFLICT clause is specified
as part of the statement causing the trigger to fire,
The parent is still being deleted and inserted, however, the trigger now uses
the REPLACE conflict resolution method rather than the IGNORE resolution method
and that resolution method causes the deletion and insertion of a new child
record.
---
The fact that there's a Highway to Hell but only
Sets of things inherently have no order. Since you have not specified an order
(as in an order by clause), any ordering you perceive is simply a figment of
your imagination and does not, in reality, exist.
You can always add another column and put your order in it so that you can sort
by that
-- Catalog Views using sqlite_master for SysObjects (Object Names)
-- and the various pragma_(ObjectName) tables to retrieve schema data
-- all TEXT columns in views have "collate nocase" attached to the output
-- columns to ensure that where conditions on retrievals are not case sensitive
-- Colu
Yes. See https://sqlite.org/lang_transaction.html
From that page:
"Transactions can be deferred, immediate, or exclusive. The default transaction
behavior is deferred. Deferred means that no locks are acquired on the database
until the database is first accessed. Thus with a deferred transact
Should not your application just retrieve the UTF-8 text and format it for
display to the user? User <-> Software formatting (and input/output diddling
of any type) should only be done ONCE (on INPUT from the user or on OUTPUT to
the user) as close to the User as possible and should *NEVER EVE
THREADSAFE is about entrance requirements and has nothing whatsoever to do with
reading/writing or transactions.
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqli
Yes. If you are starting a transaction in which you know you are going to
write use BEGIN IMMEDIATE. Plain BEGIN (BEGIN DEFERRED) starts a READ
transaction and only attempts to upgrade to a write transaction when you try to
write. Since a read transaction in WAL works with a version of the d
THREADSAFE has NOTHING to do with transactions. Repeat, there is no value to
which you can set the THREADSAFE constant which has any effect whatsoever on
transactions.
Transactions are commenced ON A CONNECTION with either (a) implicitly as
required if you do not do it yourself (known as "mag
THREADSAFE is about re-entrancy control. It has nothing to do with connections
or transactions or how many/which threads can make sqlite3 calls (except in the
case of THREADSAFE=0).
TRANSACTIONS are an attribute of a CONNECTION. All operations on a CONNECTION
(and statements derived/prepared
Is FileType case sensitive?
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Stephen Chrzanowski
>Sent: Sa
How did you start your processes? ie, is each process doing an sqlite3_open()
or are you forking and passing the same pointer to multiple processes?
What filesystem is the file located on? Is it a local filesystem or a network
filesystem?
Threadsafe is for protection against multiple entranc
ing index
>
>Wow, I had no idea that the order of the columns in the index effects
>how
>they're used. Must. Study. More.
>
>On Tue, Feb 6, 2018 at 5:15 PM, Keith Medcalf
>wrote:
>
>>
>> That said, however, the performance increase will be proportional
>t
inal Message-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Keith Medcalf
>Sent: Tuesday, 6 February, 2018 18:07
>To: SQLite mailing list
>Subject: Re: [sqlite] question about covering index
>
>
>Because your fields are backwards?
&
Because your fields are backwards?
x should come before _id (x is a row selector, _id is a grouping selector), and
the y cannot be used to sort (obviously) but can be used to avoid the table
lookup to feed the results into the temp b-tree sorter.
sqlite> CREATE TABLE foo (_id integer primary k
That is because you do not have an index on the tableB child key of the
relation (fk). This is required. see the lint command in a command line shell
near you.
You do realize that a LEFT JOIN b is syntactic sugar for a LEFT OUTER JOIN b
which means, in English, include all the rows of a whet
No. Column name and table referents (identifiers) must be specified explicitly
(as part of the command) and MUST NOT be bound parameters. You are asking to
sort by the value 1 for all rows, which means that the output is in "visitation
order" since the ORDER BY value is the same for all rows
I do not understand this at all.
If the definition of a C-String is a
"bunch-a-non-zero-byes-terminated-by-a-zero-byte", then how is it possible to
have a zero/null byte "embedded" within a C-Style String?
Similarly, if a C-Style-Wide-String is defined as a
"bunch-a-non-zero-words-terminate
Actually, EOF (0xFF) *is* part of a text file, and is the byte in an ASCII
byte-stream that indicates end-of-file. In the "old days" the bytes following
the last-byte in a stream and the end of a storage block
(sector/cluster/track/cylinder, what have you) were padded with 0xFF so you
knew yo
rom temp.rotate where oldkey=x.key);
drop table temp.rotate;
commit;
---
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-----
>From: Keith Medcalf [mailto:kmedc...@dessus.com]
>Sent: Monday, 22 Januar
-
>From: sqlite-users [mailto:sqlite-users-
>boun...@mailinglists.sqlite.org] On Behalf Of Cecil Westerhof
>Sent: Monday, 22 January, 2018 17:19
>To: SQLite mailing list
>Subject: Re: [sqlite] Can this be done with SQLite
>
>2018-01-23 1:02 GMT+01:00 Keith Medcalf :
>
>>
>>
Part of the problem is going to be that you have not defined the problem
sufficiently for a "solution" to be proposed. Based on your somewhat silly
example one can deduce the following constraints:
With respect to "key":
- this is TEXT (UTF-8 or something else)?
- you specify check(length(ke
When you use a "select" from the shell to output a value converted to text, it
outputs the value "doctored up" (coddled) for display to humans rather than
display the true (as in actual) floating point value. This is because "most
people" do not understand how computers (binary floating point
;
>____
>From: sqlite-users on
>behalf of Keith Medcalf
>Sent: Saturday, January 20, 2018 5:10:20 PM
>To: SQLite mailing list
>Subject: Re: [sqlite] [EXTERNAL] get stmt row count
>
>
>Clemens is correct, the best way is to keep the transaction op
an easy
>way of checking if the db file has been modified since the RowIDs
>query has been run? I’m sure I read something about a db related
>integer that was incremented after every update or vacuum but can’t
>find the post.
>
>
>
>
>
>
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