I don't know if this helps, but I'll comment anyway!
I had a similar issue in the past, and what I did was to develop a small
layer with a queue system, which took care of all the database requests and
executed them without risking the database integrity nor the data to be
processed.
jose isaias cabrera <[EMAIL PROTECTED]>
wrote:
jose isaias cabrera
<[EMAIL PROTECTED]>
wrote:
Perhaps, this should be the case. It would not be so hard to keep a
table of connections that are attached or open with a table.
You don't want an otherwise read-only connection have to write to the
jose isaias cabrera <[EMAIL PROTECTED]>
wrote:
Perhaps, this should be the case. It would not be so hard to keep a
table of connections that are attached or open with a table.
You don't want an otherwise read-only connection have to write to the
database. This will harm concurrency.
Oh,
jose isaias cabrera <[EMAIL PROTECTED]>
wrote:
Perhaps, this should be the case. It would not be so hard to keep a
table of connections that are attached or open with a table.
You don't want an otherwise read-only connection have to write to the
database. This will harm concurrency.
Well,
Greetings!
So, I would like to update some columns based on whether or not they are
null. Some of you folks have helped me with ifnull and IS NULL, and I
happened to see coalesce, but none of these are working. If I set the
value, they will work, but with the checks, they do not get
"Igor Tandetnik" wrote,
jose isaias cabrera <[EMAIL PROTECTED]>
wrote:
What
I would like to know is, how do I know if I have a db attached
already?
Realize that a set of attached DBs is a property of a connection (a
sqlite3* handle), not some kind of persistent state of the database. You
I generated this make with LCC ide, thats why I dont understand the reason
of my problem!
I tried using GCC but when I run the make with the included makefile I get
"nothing to be done for..." . Im getting quite frustrated by now.
- Original Message -
From: "John Stanton" <[EMAIL
On 3/10/07, Nuno Lucas <[EMAIL PROTECTED]> wrote:
On 3/10/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Joe Wilson <[EMAIL PROTECTED]> wrote:
> > --- [EMAIL PROTECTED] wrote:
> > > Is there something that the SQLite core can do better?
> >
> > Perhaps exclusive locks on journal files would
RB Smissaert <[EMAIL PROTECTED]>
wrote:
UPDATE
A3SQLADC_J
SET
ADDED_DATE = '' WHERE ADDED_DATE = 0 OR ADDED_DATE IS NULL,
START_DATE = '' WHERE START_DATE = 0 OR START_DATE IS NULL
near ",": syntax error
Make it
UPDATE
A3SQLADC_J
SET
ADDED_DATE = (case when ADDED_DATE = 0 OR ADDED_DATE IS
RB Smissaert wrote:
UPDATE
A3SQLADC_J
SET
ADDED_DATE = '' WHERE ADDED_DATE = 0 OR ADDED_DATE IS NULL,
START_DATE = '' WHERE START_DATE = 0 OR START_DATE IS NULL
near ",": syntax error
I am sure I have run this before with no trouble.
According to the web page, there should be only one WHERE
From my recollection the lcc make is not syntax compatible with
standard make. I have always used the lcc make within its own IDE so
that the make file is generated by the lcc IDE.
You could use a regular make and just subsitute the CC definition for
the lcc compiler. You might find the
Stef Mientki wrote:
thanks guys,
for the fast and different responses,
I really appreciate that.
... now I need a couple hours to study all your ideas.
After studying all your suggestions, I must conclude
that my knowledge of SQL is too low to create a real fool proof solution.
For the
Thanks for the info.
Im trying with the LCC ide but I get odd errors while trying to compile:
"c:\lcc\bin\make.exe: Commands defined twice for target where.obj near line
87"
I was getting a similar error with another file, I remade the project and
now Im getting the same error on a different
UPDATE
A3SQLADC_J
SET
ADDED_DATE = '' WHERE ADDED_DATE = 0 OR ADDED_DATE IS NULL,
START_DATE = '' WHERE START_DATE = 0 OR START_DATE IS NULL
near ",": syntax error
I am sure I have run this before with no trouble.
RBS
Dave Dyer <[EMAIL PROTECTED]> wrote:
> >
> >The main purpose of the journal is so that if the program
> >or OS crashes or there is a power failure, once the machine
> >reboots and some other process tries to read the database,
> >the other process can see the journal and roll it back.
> >Private
>
>OS designers could think about providing a capability of tagging a file as
>private and making it immune to interference from gratuitous activity.
Of course, if such a facility existed it would be exploited by
viruses to keep the antivirus forces at bay. Quite a conundrum.
This kind of
The journal file enables Sqlite to roll back a part-posted transaction
on restart and ensure transactional integrity.
Dave Dyer wrote:
The main purpose of the journal is so that if the program
or OS crashes or there is a power failure, once the machine
reboots and some other process tries to
>
>The main purpose of the journal is so that if the program
>or OS crashes or there is a power failure, once the machine
>reboots and some other process tries to read the database,
>the other process can see the journal and roll it back.
>Private anonymous mapped objects defeat that purpose, it
On 3/10/07, Nuno Lucas <[EMAIL PROTECTED]> wrote:
On 3/10/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> They are, at least on unix. On unix, both files are opened with
> the O_EXCL flag. How do I do the same thing for windows?
The code does that already. You just pass 0 on the share
>Removing the index is one of the silliest suggestions I've ever
>encountered. A book without an index is almost useless, unless of course
>you're blessed with a photographic memory. As far as putting in on a CD
>or on the web, that's fine as long as a _good_ index is also included in
>the book.
GCC will compile you a library usable with a broad range of C compilers.
If you find the gcc library unusable use the makefile as the basis for
compiling it using lcc. I use lcc and gcc (mingw) interchangably. GCC
has optimization but if you write elegant and efficient C lcc will
generate
This is a code snippet for such a function with Windows and Unix. Even
here the dreaded NFS raises its ugly head. The Windows code has worked
fine, but Windows gurus might find some way to improve it.
/*Open the file if possible in the appropriate mode.*/
#if IS_WIN32
mode =
"Dennis Cote" wrote,
jose isaias cabrera wrote:
So, there is on way of doing it in one call/instruction as I previously
exampled, correct? I will have to do them in many calls, correct?
Jose,
You can do it in one API call if you put all the update statements into a
single string.
After I hit it struck me like a bombshell that the journal has to
be there for the next startup to perform its complete function so such a
method would fail. A virtual memory based object would only provide
transactional support, not crash recovery. Humble pie for breakfast!
OS designers
GCC?, I need to use the resulting DLL on normal C under windows later on,
without having strange dependencies, etc.
I'd like to know what am I doing wrong when I try to compile the sources...
Do I have to output obj for each source and then somehow link this into the
final library?
-
On Sat, 2007-03-10 at 22:22 +0900, Brownie wrote:
> Thanks Dan,
>
> > That the first database file was ATTACHed instead of being opened
> > directly makes no difference.
>
> A cache of :memory: database also be shared on shared cache mode ?
> Or :memory: database of each connections are
Removing the index is one of the silliest suggestions I've ever
encountered. A book without an index is almost useless, unless of course
you're blessed with a photographic memory. As far as putting in on a CD
or on the web, that's fine as long as a _good_ index is also included in
the book. I
* [EMAIL PROTECTED] <[EMAIL PROTECTED]> [2007-03-10 17:30]:
> Do "configure". Then edit the Makefile that is generated.
It would be nice if these options were mapped to `--enable-foo`
switches on the configure script… would that take a lot of work?
(Alternatively, if you don’t want to do it
On 3/10/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
T <[EMAIL PROTECTED]> wrote:
> Can someone please tell me (politely ;-) where to put the -
> DSQLITE_ENABLE_LOCKING_STYLE=1
>
> I tried inserting it arbitrarily in the Makefile.in file but it
> didn't seem to make a difference.
>
Do
T <[EMAIL PROTECTED]> wrote:
> Can someone please tell me (politely ;-) where to put the -
> DSQLITE_ENABLE_LOCKING_STYLE=1
>
> I tried inserting it arbitrarily in the Makefile.in file but it
> didn't seem to make a difference.
>
Do "configure". Then edit the Makefile that is generated.
--
--- Joe Wilson <[EMAIL PROTECTED]> wrote:
> There's also this - CreateFileTransacted():
>
> http://msdn2.microsoft.com/en-us/library/aa363859.aspx
>
> which has the argument:
>
> dwShareMode
> ...
> If this parameter is 0 (zero) and CreateFileTransacted succeeds,
> the object
On 3/10/07, Joe Wilson <[EMAIL PROTECTED]> wrote:
There's also this - CreateFileTransacted():
http://msdn2.microsoft.com/en-us/library/aa363859.aspx
Doesn't this require Vista?
-scott
-
To unsubscribe, send email
--- [EMAIL PROTECTED] wrote:
> Joe Wilson <[EMAIL PROTECTED]> wrote:
> > --- [EMAIL PROTECTED] wrote:
> > > Is there something that the SQLite core can do better?
> >
> > Perhaps exclusive locks on journal files would help avoid this problem.
> > Or are the -journal and etilqs_* files supposed to
Thanks to several posts in this forum, I now have a
custom collation defined with
sqlite3_create_collation, which uses Window's
CompareStringA. I managed to add it to main.c and
recompiled sqlite (I finally got my compilation
running on Windows with MingW/Msys). For my needs
properly does
Can someone please tell me (politely ;-) where to put the -
DSQLITE_ENABLE_LOCKING_STYLE=1
I tried inserting it arbitrarily in the Makefile.in file but it
didn't seem to make a difference.
Don't laugh :-[ ;-)
Thanks,
Tom
From: T <[EMAIL PROTECTED]>
Date: 9 March 2007 1:46:21 PM
To:
Thanks Dan,
That the first database file was ATTACHed instead of being opened
directly makes no difference.
A cache of :memory: database also be shared on shared cache mode ?
Or :memory: database of each connections are irrelevant ?
Regards,
2007/3/10, Dan Kennedy <[EMAIL PROTECTED]>:
On
Hi,
Am Samstag, 10. März 2007 13:26 schrieb [EMAIL PROTECTED]:
> purpose. Where do I find out more about "anonymous mapped
> objects" for windows?
ot sure if this is what John wanted to suggest:
http://msdn2.microsoft.com/en-us/ms810613.aspx
Note that you can create a mapping using the systems
Joe Wilson <[EMAIL PROTECTED]> wrote:
> --- [EMAIL PROTECTED] wrote:
> > Is there something that the SQLite core can do better?
>
> Perhaps exclusive locks on journal files would help avoid this problem.
> Or are the -journal and etilqs_* files supposed to be sharable by other
> sqlite
John Stanton <[EMAIL PROTECTED]> wrote:
> A suggestion for the journal files would be to make them private
> anonymous mapped objects.
The main purpose of the journal is so that if the program
or OS crashes or there is a power failure, once the machine
reboots and some other process tries to
>I will get back to you about the index. I also would like to invite
>anyone else who has any specific things they would like to see changed
>in the index to tell me. Assuming I can get a revised index out
>electronically, I will make any such changes immediately to the file I
>have on-hand.
>--
Thank you very much.
I am new to this mailing list, so i missed it.
Jakub Ladman
Dne sobota 10 březen 2007 00:48 Clark Christensen napsal(a):
> A poster here, "Mikey C", wrote some math functions and posted them a month
> or so ago. You might have a look at
>
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