If you want to use a lightweight DB like Sqlite and you are setting up
your own daemon and server situation then you can place the DB
synchronization function in the daemon around the Sqlite so that its
action is single streamed. In a similar situation we have installations
which manage many
Hallo.
After I changed my development machine, I was not able any more to load
the SQLITE3.DLL in my .Net application.
Looking around, I found this article that describes the problem.
http://www.sqlite.org/cvstrac/tktview?tn=1474
The solution is to recompile the DLL with visual
Hello,
Is there a way to force the range value taken by a primary key?
Suppose I have a table that will never contain more than 2**20 rows.
On some occasion, I want new inserted rows to have a pkey in [0,
2**32), on another occasion they would take their value in [2**32,
2*33), etc. In my
Hi,
According to that ticket it is fixed in the latest
download on the website. So there should be
no need to recompile yourself unless it is an
older version?
Cheers,
Rob
- Original Message -
From: Clinco, Michele [EMAIL PROTECTED]
To: sqlite-users@sqlite.org
Sent: Tuesday, March
It is not. I tried, but does not work.
Bye, Michele
-Messaggio originale-
Da: Rob Lohman [mailto:[EMAIL PROTECTED]
Inviato: martedì, 21. marzo 2006 10:11
A: sqlite-users@sqlite.org
Oggetto: Re: [sqlite] SQLITE3.DLL fails to load if address 0x6090 occupied
and DLL recompilation
Hi,
Hello,
I am using SQLite compiled with SQLITE_ENABLE_MEMORY_MANAGEMENT on Win32.
I execute the following psydocode, all with same DB handle:
* In application's main thread: sqlite3_open
* Create a new thread
* In new thread: sqlite3_close
This creates an access violation in pager.c, lines 2065
You have to call open close in the same thread, and in each thread if
needed.
The returned sqlite3* can only be used in the same thread in which it was
created. It is an error to call
sqlite3_openhttp://www.sqlite.org/capi3ref.html#sqlite3_open()
in one thread then pass the resulting database
Hi Ralf,
If I remember correctly you cannot use a SQLite database handle
across threads. Each thread will need to open (and close) the
database itself.
Cheers,
Rob
- Original Message -
From: Ralf Junker [EMAIL PROTECTED]
To: sqlite-users@sqlite.org
Sent: Tuesday, March 21, 2006
Hello Ludovic Ferrandis,
thanks, but this is not quite true for the latest version:
http://www.sqlite.org/faq.html#q8 reads:
The restriction on moving database connections across threads was relaxed
somewhat in version 3.3.1. With that and subsequent versions, it is safe to
move a connection
Ralf Junker [EMAIL PROTECTED] wrote:
Hello,
I am using SQLite compiled with SQLITE_ENABLE_MEMORY_MANAGEMENT on Win32.
Why? What do you hope to accomplish by using MEMORY_MANAGEMENT on
Win32? MM is designed for use on embedded devices with very tight
memory restrictions. It is not
Hallo list,
I'm relatively inexperienced when it comes to databases and SQL (but to
programming). I'm using sqlite's (recent version) C API called from a
C++ application.
I'm confronted with the following situation:
Ca. 2500-3000 objects (called 'entity') everyone with 3 properties (REAL
in
Hello Rob Lohman,
SQLite is multithreaded since 3.3.1. Still, threre are restrictions:
When shared-cache mode is enabled, a database connection may only be used by
the thread that called sqlite3_open() to create it. If another thread attempts
to use the database connection, in most cases an
Joe Wilson [EMAIL PROTECTED] wrote:
Does SQLite have a debug function to dump its parse tree
in readable ASCII form?
Nope.
--
D. Richard Hipp [EMAIL PROTECTED]
jt [EMAIL PROTECTED] wrote:
Hello,
Is there a way to force the range value taken by a primary key?
When you insert a NULL into an INTEGER PRIMARY KEY, it always
converts the NULL to be one larger than the largest existing
value. But you can specify a specific key and skip SQLite's
automatic
Micha Bieber [EMAIL PROTECTED] wrote:
Appending all 25*10^6 rows takes 40
minutes on a PC with 3 GHz, 1GB memory and sufficient large harddisk.
Inserting 25-million rows in a table should be quick.
Building an index (or indices) on a 25-million row table
takes much longer.
You did not show
Hello Richard,
in case of stating the obvious: Thanks for your answer! It is always my
pleasure reading your explanations on SQLite: Quick, precise, and right up to
the point!
Ralf
While I understand from the FAQ that it might be problematic to use more
than one thread with
Hi drh and others,
Regarding the issues they appear on ML with very large tables and knowing
that sqlite now enforces constraint checks on tables, is there any
chances of suporting table partitoning?
Regards,
Miha
On 3/21/2006, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Miha Vrhovnik [EMAIL PROTECTED] wrote:
Hi drh and others,
Regarding the issues they appear on ML with very large tables and knowing
that sqlite now enforces constraint checks on tables, is there any
chances of suporting table
The database already knows exactly where to look for each table when all
the tables are in the same file.
All it has to do is lseek() to the appropriate spot. How does moving
tables into separate files help this or make it any faster?
Table partitioning is a technique used to improve
Miha Vrhovnik [EMAIL PROTECTED] wrote:
Hi drh and others,
Regarding the issues they appear on ML with very large tables and knowing
that sqlite now enforces constraint checks on tables, is there any
chances of suporting table partitoning?
Put each table in a separate database file then
Miha Vrhovnik [EMAIL PROTECTED] wrote:
On 3/21/2006, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote:
Miha Vrhovnik [EMAIL PROTECTED] wrote:
Hi drh and others,
Regarding the issues they appear on ML with very large tables and knowing
that sqlite now enforces constraint checks on tables, is
hello everyone,
I just want to test the connection between C and sqlite3, When I cross
compile my program there is an error baffled me?
There are my steps and the error:
$arm-linux-gcc -o sqltest sqltest.c libsqlite.a
usr/local/arm-linux/lib/libc.so.6: could not read
You should try with an ARM library. I think the ARM linker should not
appreciate an X86 library.
On 3/21/06, 杰 张 [EMAIL PROTECTED] wrote:
hello everyone,
I just want to test the connection between C and sqlite3, When I
cross compile my program there is an error baffled me?
There
Sqlite has 3 types of locks, which is weird for me.
Could You explain what is a reserved lock?
Read and read/write (exclusive) locks are apparent.
http://www.sqlite.org/capi3ref.html#sqlite3_busy_handler
Best Regards,
Rafal Rusin
TouK Company
(www.touk.pl)
http://www.sqlite.org/lockingv3.html
RESERVED
A RESERVED lock means that the process is planning on writing to the
database file at some point in the future but that it is currently just
reading from the file. Only a single RESERVED lock may be active at one
time, though multiple SHARED locks
On 21 Mar 2006, at 18:11, Ed Porter wrote:
Hi Ian,
You nee to use a Full Outer Join. I don't know if SQLite has this
function.
Nah, definitely only wanted a left outer, didn't want the results
multiplied up or anything, just wanted every Category and any Cases
if matching the
In a previous message:
The way indices work in SQLite is that there is one row
in the index for each row in the table but the index rows
are in index order.
...
D. Richard Hipp [EMAIL PROTECTED]
Is there a way I can scroll thru a particular index? For example:
1. Scroll
Hello,
I'm doing a port of our application from Windows to Linux and one of the
problems I'm facing is when executing the following statement through a call
to sqlite3_exec():
SELECT mytable.'mycolumn' FROM table
The registered callback function 4th argument (a char**) denoting the
Try:
UPDATE table SET aColumn = someNewValue, numTouched = numTouched + 1
WHERE predicates;
Regards.
rayB
|-+
| | Tito Ciuro |
| | [EMAIL PROTECTED] |
| ||
| |
Some people on the list have noted that inserting pre-sorted
rows in sub-batches into SQLite is faster than inserting
unsorted rows. Granted, you could only do this for one index
per table, but might this be the basis of an optimization?
(I have not looked at the insert code. Perhaps SQLite is
Hi,all
I just want to connect ASP and SQLite at ARM9 target board,but I don't known
how to do it . Please help me! Thank you so much!
__
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http://cn.mail.yahoo.com
On Wed, Mar 22, 2006 at 10:41:23AM +1100, John Stanton wrote:
The mmap'd index was about three times faster than when it
used a LRU paged cache.
I looked fairly closely into the possibility of using mmap for the
SQLite btree backend, and realized that it would be quite difficult.
Because the
Our approach to byte order independence was fairly simple, and worked
well with a mmap'd index. It involved keeping the just word pointers in
a local byte ordered block if the machine were a different Endian. The
overhead was next to insignificant. Our indices were all byte order
Hi,
I am planning to use sqlite with VS .Net 2003 Smart device C# application.
Just wondering if anyone has blazed down this path before and has any
insights to share.
Thanks!
~CodeMonkey8
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