Hi All,
I tried a lot but no success. The Error message said following:
/System.TypeInitializationException: Der Typeninitialisierer für
Sunbird_info.Event hat eine Ausnahme verursacht. ---
System.Data.SQLite.SQLiteException: Unable to open the database file
bei
Hi,
so now I used the full path to my database and it works fine. Thanks
everyone for your help.
To run on auto boot the program needed to have the full reference to the
database otherwise it will return an exception.
best regards
Daniel
___
On 6 Jul 2010, at 10:36am, Daniel wrote:
so now I used the full path to my database and it works fine. Thanks
everyone for your help.
To run on auto boot the program needed to have the full reference to the
database otherwise it will return an exception.
It is probably trying to access a
Am 06.07.2010 13:28, schrieb Simon Slavin:
On 6 Jul 2010, at 10:36am, Daniel wrote:
so now I used the full path to my database and it works fine. Thanks
everyone for your help.
To run on auto boot the program needed to have the full reference to the
database otherwise it will return an
On 6 Jul 2010, at 1:06pm, Daniel wrote:
Am 06.07.2010 13:28, schrieb Simon Slavin:
It is probably trying to access a file in a folder it has no rights to.
Perhaps the root folder of the boot drive.
That was also my intention, so I copied the whole folder to my data
partition.
The
We have scheduled the release of SQLite version 3.7.0 for Thursday,
2010-07-15. That date could yet change, but 2010-07-15 is our target.
SQLite version 3.7.0 will feature the addition of a write-ahead log
(WAL) capability for transaction control. See
http://www.sqlite.org/draft/wal.html
Hi,
3.6.23.1's amalgamated sqlite.h include a prototype for sqlite3_key() if
SQLITE_HAS_CODEC is defined.
This test is currently done with #if SQLITE_HAS_CODEC, which triggers a
warning from gcc -Wundef if this macro isn't declared via a precompiled
header/command line flag/etc.
Most of the
Whats the procedure for using sqlite3_step?
I thought it would be along the lines of the following, but the while
loop executes infinately. I would have expected the while loop to run
once for each row found?
Code is as follows:
int queryreturn = sqlite3_step(preparedstatement);
if
On 7/6/10, Andrew Wood ajw...@theiet.org wrote:
Whats the procedure for using sqlite3_step?
I thought it would be along the lines of the following, but the while
loop executes infinately. I would have expected the while loop to run
once for each row found?
Code is as follows:
int
I use a bit simpler approach, don't know if it is correct or not, but
it seems to work:
int rc = sqlite3_step(stmt);
while(rc == SQLITE_ROW)
{
/* read the row info */
rc = sqlite3_step(stmt);
}
if( rc != SQLITE_DONE)
{
/* handle error */
}
Hi,
I can attach a database to the current session. But I have to
explicitly specify the table name to refer to any tables in it (such
'create_index' in 'create_index.sqlite_master'). Is there a command
similar to 'use database' (mysql) in sqlite3 so that I can make a
particular database as
On Tue, Jul 6, 2010 at 11:00 AM, Peng Yu pengyu...@gmail.com wrote:
Hi,
I can attach a database to the current session. But I have to
explicitly specify the table name to refer to any tables in it (such
'create_index' in 'create_index.sqlite_master'). Is there a command
similar to 'use
Whoops thats what comes of writing code when you're feeling under weather :)
Thanks
On 06/07/10 16:43, Mike Shal wrote:
I haven't tried it, but I suspect this is your problem. It looks like
you're declaring a new 'queryreturn' int, but the while loop is
checking against the one from the top
Is there a command
similar to 'use database' (mysql) in sqlite3 so that I can make a
particular database as default? (I don't find such command, but please
let me know in case if I miss anything.)
Yes. It is sqlite3_open() in C API. And if you use command line
utility then you should pass the
sqlite .schema role
CREATE VIRTUAL TABLE role USING fts3(uuid TEXT, uid INTEGER, dt TEXT, ts
INTEGER, fields, tasks, TOKENIZE icu ru_RU);
Fast queries:
sqlite select count(*) from role where role match '1278429059';
count(*)
471
CPU Time: user 0.00 sys 0.00
sqlite select count(*) from
Hi,
I'm considering using SQLite as backend for my software. What's stopping
me is the low insert-performance. If I disable fsync/FlushFileBuffers,
performance is good but I can't do with the risk of database corruption.
I don't know the details of the WAL-implementation in 3.7, but if
You'll find a LARGE performance improvement if you wrap your inserts inside a
BEGIN/COMMIT and only commit every 1000 or so inserts or such.
BEGIN
for all records
INSERT
count++
if ((count % 1000)==0) COMMIT;BEGIN // commit and begin again
end
COMMIT
Michael D. Black
Senior
On 6 Jul 2010, at 6:05pm, Martin Knafve wrote:
On my PC, INSERT's with fsync disabled
is ~50 times faster than when fsync is used, so I would expect enabling
WAL to give me at least a 500% speedup. Of course, my assumptions are very
rough and I understand that I'm likely far off.
Am I
On Tue, Jul 6, 2010 at 1:05 PM, Martin Knafve mar...@hmailserver.comwrote:
Hi,
I'm considering using SQLite as backend for my software. What's stopping
me is the low insert-performance. If I disable fsync/FlushFileBuffers,
performance is good but I can't do with the risk of database
On Tue, Jul 6, 2010 at 1:05 PM, Martin Knafve
mar...@hmailserver.comwrote:
Hi,
I'm considering using SQLite as backend for my software. What's stopping
me is the low insert-performance. If I disable fsync/FlushFileBuffers,
performance is good but I can't do with the risk of database
On 6 Jul 2010, at 6:05pm, Martin Knafve wrote:
On my PC, INSERT's with fsync disabled
is ~50 times faster than when fsync is used, so I would expect enabling
WAL to give me at least a 500% speedup. Of course, my assumptions are
very
rough and I understand that I'm likely far off.
Am I
On 6 Jul 2010, at 6:46pm, Martin Knafve wrote:
You're right - what I meant was explicit transaction. I know that you
can speed up things by placing everything in a large transaction, but in
my software these kinds of bulk INSERT operations are very rare. (In my
case, they would only be made
Hello People,
I was creating a server and a corresponding client application, in which the
I'm using SQLite for both the client and the server. The tricky part in this
setup is that the client is not required to store the database file with
itself, but it fetches it from the server, does whatever
When you say send it do you mean you can mount the server file system?
If so, just attach a database table on the server and copy your database over
to it. The server can then copy it into memory. You just need some sort of
notification method (like a table with a boolean) to show who has
You're right - what I meant was explicit transaction. I know that you
can speed up things by placing everything in a large transaction, but in
my software these kinds of bulk INSERT operations are very rare. (In my
case, they would only be made during a BACKUP/RESTORE process).
I think
Hi guys,
I am trying to setup sqlite to be used with VC++ 2008. Can someone show me
where I can find instructions on how to set it up? and do I need a c++
wrapper to code in C++? If yes, can someone also show how to setup the
wrapper?
Thanks
--
View this message in context:
You don't need C++ wrappers...just code in C. There's lots more C examples out
there than C++.
Easiest way for me to integrate is to download the amalgamation and include it
as a source file in your project.
The amalgamzation is at the top of the download page:
On Tue, Jul 6, 2010 at 3:33 PM, smengl90
fixed-term.seak.meng...@us.bosch.com wrote:
Hi guys,
I am trying to setup sqlite to be used with VC++ 2008. Can someone show me
where I can find instructions on how to set it up? and do I need a c++
wrapper to code in C++? If yes, can someone also
$ ls -lh
-rw-r--r-- 1 veter veter 700M Июл 7 00:55 test.db
-rw-r--r-- 1 veter veter 192K Июл 7 00:55 test.db-shm
-rw-r--r-- 1 veter veter 186M Июл 7 00:55 test.db-wal
-rwxr-xr-x 1 veter veter 3,0K Июл 7 00:47 test.tcl
$ sqlite3 test.db 'pragma page_size'
8192
$ sqlite3 test.db 'PRAGMA
Thanks for prompt replies. I did as you advised, and included the .h file as
a source file and copied your code. But when I compiled it, I got these
linking errors:
1Linking...
1TestSqlite.obj : error LNK2019: unresolved external symbol _sqlite3_close
referenced in function _main
1TestSqlite.obj
Hi,
It seems that .echo on shows certain commands but not all. For
example, 'create table' command is not shown. Is there a command to
show all the commands that are executed?
$ cat ./main.sql
#!/usr/bin/env bash
rm -f main.db
sqlite3 main.db EOF
.echo on
.schema
create table test (id integer
A busy read transaction holds the WAL open and prevent is from being reset.
If you find that your WAL is growing without bound, this suggests that you
have an unfinalized query hanging around someplace, perhaps in a separate
hung process.
2010/7/6 Alexey Pechnikov pechni...@mobigroup.ru
$ ls
I could create tables in database B to select all the data from
database A and insert them in B. I don't find any simpler way to copy
all tables from A to B. But I may miss something.
I'm wondering if there is a very simple single command that can just
copy all the tables from database A to
I've been reading the documentation. I've been googling and thinking.
Still, I can't figure out the best way to determine when to run the
VACUUM-command. Note that I do NOT want to enable auto vacuum.
I do remember reading something about calculating empty space, used pages etc
etc. Still,
On 6 Jul 2010, at 10:42pm, Peng Yu wrote:
I could create tables in database B to select all the data from
database A and insert them in B. I don't find any simpler way to copy
all tables from A to B. But I may miss something.
I'm wondering if there is a very simple single command that can
On 6 Jul 2010, at 10:45pm, Kristoffer Danielsson wrote:
Q: How do I programmatically (through sqlite-APIs?) determine if it's time to
VACUUM a database?
It's never time to VACUUM a database. The VACUUM command is useful only if you
have want to recover unused space from the database file.
There is only single process:
$ fuser test.db
test.db: 3326
$ ps aux|grep 3326|grep -v grep
veter 3326 55.9 3.3 309892 278832 pts/1 Dl+ 01:19 17:11
/usr/bin/tclsh8.5 ./test.tcl
And I see now:
$ ls -lh
итого 3,9G
-rw-r--r-- 1 veter veter 3,1G Июл 7 01:50 test.db
-rw-r--r--
What you are saying makes sense. Thanks for your advice!
However, I do believe there are times when vacuuming would be beneficial. For
instance, if a database for software X is detected to have 90% unused space for
a couple of weeks, then why bloat the harddrive? (I don't know how to do
I found out that including the header file alone is not enough. I need to
link the sqlite lib to my project. But how can can I get the lib?
smengl90 wrote:
Thanks for prompt replies. I did as you advised, and included the .h file
as a source file and copied your code. But when I compiled
On Tue, Jul 6, 2010 at 5:58 PM, Kristoffer Danielsson
kristoffer.daniels...@live.se wrote:
However, I do believe there are times when vacuuming would be beneficial. For
instance, if a database for software X is detected to have 90% unused space
for a couple of weeks, then why bloat the
I, (or more to the point, SQLite) can't seem to retain leading zeros
on numbers.
The receiving field is defined as CHAR;
I'm using the SQLite Manager in Firefox.
I've also tried sqlite3 from the command line.
Here's a typical (and minimal) statement:
UPDATE UPCs SET UPC=043000205563;
UPDATE UPCs
I'm aware that SQLite offers the functionality of in-memory databases,
but I
don't know how to read the data and send it over the wire to the server or
how to push the data into the in-memory database of the server.
The backup API included in SQLite offers the facility to backup/restore
(in
On Tue, Jul 6, 2010 at 5:10 PM, Ted Rolle, Jr. ster...@gmail.com wrote:
I, (or more to the point, SQLite) can't seem to retain leading zeros
on numbers.
The receiving field is defined as CHAR;
I'm using the SQLite Manager in Firefox.
I've also tried sqlite3 from the command line.
Here's a
On 6 Jul 2010, at 11:10pm, Ted Rolle, Jr. wrote:
The receiving field is defined as CHAR; [snip]
SQLite has no such type. Define the fields as TEXT instead:
http://www.sqlite.org/datatype3.html
Then try 'UPDATE UPCs SET UPC=043000205563;' and see what you get.
Last question: is this an
On Tue, Jul 6, 2010 at 4:45 PM, Simon Slavin slav...@bigfraud.org wrote:
On 6 Jul 2010, at 10:42pm, Peng Yu wrote:
I could create tables in database B to select all the data from
database A and insert them in B. I don't find any simpler way to copy
all tables from A to B. But I may miss
On 7/6/2010 2:58 PM, Kristoffer Danielsson wrote:
What you are saying makes sense. Thanks for your advice!
However, I do believe there are times when vacuuming would be beneficial. For
instance, if a database for software X is detected to have 90% unused space
for a couple of weeks, then
Ive been looking at the function
sqlite3_column_decltype
and am a little confused as to its use.
How can I find out the declared type of a column.
As I understand this function, I would have to do a single col select first,
(select col1 from table) then pass that prepared statement to ?
2010/7/6 Alexey Pechnikov pechni...@mobigroup.ru
My test script
http://mobigroup.ru/files/test.tcl
When I run this script it immediately crashes with no such table:
view_role
--
Best regards, Alexey Pechnikov.
http://pechnikov.tel/
___
Andrew Wood ajw...@theiet.org wrote:
Ive been looking at the function
sqlite3_column_decltype
and am a little confused as to its use.
How can I find out the declared type of a column.
As I understand this function, I would have to do a single col select first
Not necessarily a
Simon Slavin wrote:
SQLite has types. It just doesn't require every value in the same column to
be of the same type.
Or to put it another way, every SQLite column *does* have a type, but in the
general case that type is a generic or union type whose domain encompasses the
domains of the
Hi,
You could also use another open source layer for SQLite3, wxSQLite3 project on
sourceforge. It's uses wxWidgets cross-platform C++ toolkit.
best regards,
Radzi.
On 7-Jul-2010, at 6:09 AM, smengl90 wrote:
I found out that including the header file alone is not enough. I need to
link
On Tue, 6 Jul 2010 17:13:44 -0500
P Kishor punk.k...@gmail.com wrote:
sqlite CREATE TABLE UPCs (UPC TEXT);
sqlite INSERT INTO UPCs VALUES ('043000205563');
sqlite SELECT * FROM UPCs;
UPC
043000205563
sqlite
I did as you said with sqlite and it worked perfectly. Thank you.
The receiving field is defined as CHAR; [snip]
SQLite has no such type. Define the fields as TEXT instead:
Simon, please don't confuse poor users. SQLite will work perfectly and
indistinguishably well with both CHAR and TEXT. Please read the link
you gave more carefully (hint: bullet number 2
I found out that including the header file alone is not enough. I need to
link the sqlite lib to my project. But how can can I get the lib?
Just include sqlite3.c file into your project as a source and that's
it, VC++ will take care of compiling it and linking it into your
binary.
Pavel
On
On Tue, Jul 6, 2010 at 8:45 PM, Pavel Ivanov paiva...@gmail.com wrote:
The receiving field is defined as CHAR; [snip]
SQLite has no such type. Define the fields as TEXT instead:
Simon, please don't confuse poor users. SQLite will work perfectly and
indistinguishably well with both CHAR and
So, because type VLADIVOSTOK is not recognized, sqlite tries to
convert any value entered, even if it is delimited with single quotes,
to something recognizable. I guess it starts with INT, and since it is
able to convert '043000205563' to integer, that is what it does. In
the case of
Oh, yes, check null size for new database is incorrect in WAL mode. I
replace this script by more simple:
==
http://mobigroup.ru/files/test.tcl
#!/usr/bin/tclsh8.5
package require sqlite3
sqlite3 db grow.db
db eval {pragma cache_size=32000}
db eval {pragma
On Tue, Jul 06, 2010 at 11:45:18PM +0200, Kristoffer Danielsson scratched on
the wall:
I've been reading the documentation. I've been googling and thinking.
Still, I can't figure out the best way to determine when to run
the VACUUM-command. Note that I do NOT want to enable auto vacuum.
On Tue, Jul 06, 2010 at 04:42:05PM -0500, Peng Yu scratched on the wall:
I could create tables in database B to select all the data from
database A and insert them in B. I don't find any simpler way to copy
all tables from A to B. But I may miss something.
I'm wondering if there is a very
On Tue, Jul 06, 2010 at 09:45:50PM -0400, Pavel Ivanov scratched on the wall:
Leading zeros in the number can never be significant,
While that's true for SQL values, it isn't true in the general case.
C programmers and old-school UNIX folks tend to get very nervous
about leading zeros.
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