Re: [sqlite] how to get the INTEGER PRIMARY KEY for the row just inserted?
> begin immediate; insert; select max(id) from blah; commit; Or "select last_insert_rowid() from blah limit 1" Regards
Re: [sqlite] Access Violations in sqlite3_step when in DLL
> Sounds like the calling type is different. Do you know if the EXE is > calling your stuff using stdcall or cdecl, and does it match your > functions? If you don't specify, your functions are cdecl. I've seen > this kind of thing when they don't match. It may work a couple of > times, but eventually something blows up. No, I am not actually sure what they are using... though they havn't supported delphi DLL's for long... normally they supported C dlls... hurm, that's an avenue I hadn't thought of. thanks... I made sure OUR call types where correct but never thought about what they were using Someone also mentioned ram. The machine(s) we are using seem stable for other processes but won't rule that out Looks like I am going debugging :)
Re: Re: [sqlite] How do I efficiently copy tables to another db within dll (sqlite3+)
Thanks Jay. Great! This could work... I'm wondering, though if you know whether the limitation below (from sqlite documentation) could be safely circumvented if attaching the source db with an alias name. It seems to work when i try it but I'm concerned that there might be other unknown issues. "You cannot create a new table with the same name as a table in an attached database, but you can attach a database which contains tables whose names are duplicates of tables in the main database. It is also permissible to attach the same database file multiple times." First open db1 then execute: attach database db2 as mydb2 attach datbase db1 as mydb1 create table db2.table1 as select * from db2.table1 eg: db1 --- table1 table2 db2 --- (no tables) Get your own "800" number Voicemail, fax, email, and a lot more http://www.ureach.com/reg/tag On Tue, 5 Apr 2005, Jay ([EMAIL PROTECTED]) wrote: > > Did you try attach and an insert? > > --- de f <[EMAIL PROTECTED]> wrote: > > I'd like some guidance on the most efficient way to copy a large > > table from one slqite db to another. I'm using from within vb > > with a vc++ sqlite wrapper. > > > > I know that the copy command is no longer available in ver3+ and > > am unsure of how to proceed. > > > > do i need to somehow hook into the sqlite.exe command line util > > for import functionality? > > > > Any help is appreciated. > > > > Thank You > > > > > > Get your own "800" number > > Voicemail, fax, email, and a lot more > > http://www.ureach.com/reg/tag > > > > > - > > You a Gamer? If you're near Kansas City, ask me about the Recruits and Conquest conventions. > - > > The Castles of Dereth Calendar: a tour of the art and architecture of Asheron's Call > http://www.lulu.com/content/77264 > > > > __ > Yahoo! Messenger > Show us what our next emoticon should look like. Join the fun. > http://www.advision.webevents.yahoo.com/emoticontest > >
Re: [sqlite] How do I efficiently copy tables to another db within dll (sqlite3+)
Did you try attach and an insert? --- de f <[EMAIL PROTECTED]> wrote: > I'd like some guidance on the most efficient way to copy a large > table from one slqite db to another. I'm using from within vb > with a vc++ sqlite wrapper. > > I know that the copy command is no longer available in ver3+ and > am unsure of how to proceed. > > do i need to somehow hook into the sqlite.exe command line util > for import functionality? > > Any help is appreciated. > > Thank You > > > Get your own "800" number > Voicemail, fax, email, and a lot more > http://www.ureach.com/reg/tag > - You a Gamer? If you're near Kansas City, ask me about the Recruits and Conquest conventions. - The Castles of Dereth Calendar: a tour of the art and architecture of Asheron's Call http://www.lulu.com/content/77264 __ Yahoo! Messenger Show us what our next emoticon should look like. Join the fun. http://www.advision.webevents.yahoo.com/emoticontest
Re: [sqlite] how to get the INTEGER PRIMARY KEY for the row just inserted?
The documentation is your friend. long long int sqlite3_last_insert_rowid(sqlite3*); http://sqlite.org/capi3ref.html#sqlite3_last_insert_rowid or begin immediate; insert; select max(id) from blah; commit; --- jack wu <[EMAIL PROTECTED]> wrote: > i have a table which has an ID column defined as > INTEGER PRIMARY KEY. I'd like to know the value of the > automatically generated ID right after the insert. is > there anyway to get the ID without issuing another > select? does the insert function return the ID in any > way? if another select is necessary, what is the best > way to do it? this is kind of a generic problem so i > am hoping whoever solved this issue before could share > some thoughts. Thanks for the help. > > > jack. > - You a Gamer? If you're near Kansas City, ask me about the Recruits and Conquest conventions. - The Castles of Dereth Calendar: a tour of the art and architecture of Asheron's Call http://www.lulu.com/content/77264 __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
[sqlite] How do I efficiently copy tables to another db within dll (sqlite3+)
I'd like some guidance on the most efficient way to copy a large table from one slqite db to another. I'm using from within vb with a vc++ sqlite wrapper. I know that the copy command is no longer available in ver3+ and am unsure of how to proceed. do i need to somehow hook into the sqlite.exe command line util for import functionality? Any help is appreciated. Thank You Get your own "800" number Voicemail, fax, email, and a lot more http://www.ureach.com/reg/tag
[sqlite] how to get the INTEGER PRIMARY KEY for the row just inserted?
i have a table which has an ID column defined as INTEGER PRIMARY KEY. I'd like to know the value of the automatically generated ID right after the insert. is there anyway to get the ID without issuing another select? does the insert function return the ID in any way? if another select is necessary, what is the best way to do it? this is kind of a generic problem so i am hoping whoever solved this issue before could share some thoughts. Thanks for the help. jack.
Re: [sqlite] Reading Database Schema Info. in Perl
On 30 Mar 2005, at 04:05, [EMAIL PROTECTED] wrote: I need to be able to read all table names in the database, and further all attribute names in each table. ( am using DBD::SQLite in Perl) For gathering all the table names I've used the sqlite_master table. The problem is that the information on the attributes of each table is returned as a string : eg: Type : table Name : names Table Name : names Root Page : 2 CREATE TABLE names (id INTEGER PRIMARY KEY, name) I plan to use the SQL::Parser library in order to derive all attribute information from this string. Is there a better way to go about it ? My aim is to find something equivalent to "DESC tablename" (used in sqlplus) There is core DBI support for this (which DBD::SQLite talks to). See the table_info section of the DBI man page. __ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __
Re: [sqlite] Access Violations in sqlite3_step when in DLL
On Apr 5, 2005 6:54 AM, Chris Schirlinger <[EMAIL PROTECTED]> wrote: > Recently we tried to tie in with a third party program that calls one > of our DLL's (which access the SQLite3 DB and returns a data set) > [Note: We eventually started a fresh project for this DLL, so there > was less of a chance legacy code was the issue] > > We don't control the EXE that calls our DLL, basically we export a > couple of functions determined by the third party. The EXE that calls > our DLL is written in C++ > > Now the issue is, randomly, but ALWAYS within a few dozen calls, the > function sqlite3_step access violates.The first 10 calls > (sqlite3_prepare -> sqlite3_step -> sqlite3_finalise basically) work > fine, then maybe the 11th sqlite3_step AV's Sounds like the calling type is different. Do you know if the EXE is calling your stuff using stdcall or cdecl, and does it match your functions? If you don't specify, your functions are cdecl. I've seen this kind of thing when they don't match. It may work a couple of times, but eventually something blows up. -- Joel Lucsy "The dinosaurs became extinct because they didn't have a space program." -- Larry Niven
[sqlite] Access Violations in sqlite3_step when in DLL
We have been using SQLite3 for a while now without issues. We are running a EXE calling a DLL (Which calls a DLL which eventually uses the SQLite functions) These two DLL's are both written in Delphi - in Windows (with a delphi wrapper that runs the SQLite DLL) This code has worked fine under fairly nasty conditions for a LONG time. Recently we tried to tie in with a third party program that calls one of our DLL's (which access the SQLite3 DB and returns a data set) [Note: We eventually started a fresh project for this DLL, so there was less of a chance legacy code was the issue] We don't control the EXE that calls our DLL, basically we export a couple of functions determined by the third party. The EXE that calls our DLL is written in C++ Now the issue is, randomly, but ALWAYS within a few dozen calls, the function sqlite3_step access violates.The first 10 calls (sqlite3_prepare -> sqlite3_step -> sqlite3_finalise basically) work fine, then maybe the 11th sqlite3_step AV's It can be the first, or the 40th but is guarenteed. We tried using sqlite3_get_table and it does the same thing, same sort of AV We tore out any SQLite3 code but kept every other line of code, returning some made up garbage data. The code worked fine without any SQlite3 calls, it seems entirely located in sqlite3_step or any call that uses it... Now having used SQLite3 for a while, I'm not convinced the issue is in the SQLite3 dll, but maybe the pointer populated by sqlite3_prepare is being trashed by one of the various parties... Has anyone had issues like this before? Or any ideas as to what we can try next?
[sqlite] assertion failing in pager.c :(
Hi, Can anybody help me with this problem I want to know why the assert statement assert( pPg->nRef==0 || pPg->pgno==1 ); is written in the pager_playback_one_page() function in the pager.c file(line no:573). That assertion is failing when the memory is low. To be more explanative while memory becomes low sqliteOswrite() fails and tryies to roll back. Rollback inturn calls the above mentioned function and then it fails at the assertion. I dont see any need for that assertion. More over if u can see, the assertion is commented in the latest version sqlite 3.2.0. I am using the version 2.8.15 A big thanks in advance :) regards vineeth __ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/
RE: [sqlite] ANN: Sqlite3Explorer
good idea. so, let me see if I understood correctly. you are suggesting that I rewrite the whole program in C++, plus any additional library code I might be using, so that I can use the widgets. does not sound as very practical advice to me.. > -Original Message- > From: Guru Kathiresan [mailto:[EMAIL PROTECTED] > Sent: Tuesday, April 05, 2005 8:21 AM > To: sqlite-users@sqlite.org > Subject: RE: [sqlite] ANN: Sqlite3Explorer > > Hi, > For designing wxWidgets forms like Delphi, you can use my > program IDE wx-devcpp from http://wxdsgn.sf.net . Although it > is still in beta stage, you can still able to create a decent > application with it. > > -Guru Kathiresan > > > -Original Message- > > From: Leif Jensen [mailto:[EMAIL PROTECTED] > > Sent: Monday, April 04, 2005 9:53 PM > > To: sqlite-users@sqlite.org > > Subject: Re: [sqlite] ANN: Sqlite3Explorer > > > > Have you heard about wxWidgets (www.wxWidgets.org) ? A > great free > > GUI library (and much more) that works on Windows, Linux > and Mac (at > > least). Using that and your app. would do too ;-). I have > just made a > > database application with these that runs on both Linux and Windows > > using SQLite3. > > > > Leif > > > > > > Cariotoglou Mike wrote: > > > > >[EMAIL PROTECTED] it seems the new controls I used require this function, > > >which > > >only exists in win2k+. sorry for this, I think I will rebuild > > >*without* the devexpress controls, for more genral purpose use.. > > > > > > > > > > > >>-Original Message- > > >>From: Serge Liber [mailto:[EMAIL PROTECTED] > > >>Sent: Monday, April 04, 2005 8:30 PM > > >>To: sqlite-users@sqlite.org > > >>Subject: Re: [sqlite] ANN: Sqlite3Explorer > > >> > > >>Hi, > > >> > > >>When starting sqlite3Explorer an error message appears: > > >>"The procedure entry point GdiGradientFill could not be > located in > > >>the dll GDI32.dll" > > >> > > >>How can I proceed? > > >> > > >>I use NT4+sp6 > > >> > > >>Serge Liber > > >> > > >> > > >>New version is out. Since the problem with size limits was not > > >>lifted from contrib, I created a home site for the > program. You will > > >>now be able to get latest version from > > >> > > >>http://www.singular.gr/sqlite > > >> > > >>Latest is 1.1 , 24/3/2005 (ignore the typo in the date) > > >> > > >>Regards,mike > > >> > > >> > > >> > > >> > > >> > > > > > > > > > > > > > > > >
RE: [sqlite] ANN: Sqlite3Explorer
I found the offending call and removed it. it was *not* in the devExpress code, but the visual query builder code. as a result, table captions are no longer "nice"... pls download again. > -Original Message- > From: Serge Liber [mailto:[EMAIL PROTECTED] > Sent: Monday, April 04, 2005 8:30 PM > To: sqlite-users@sqlite.org > Subject: Re: [sqlite] ANN: Sqlite3Explorer > > Hi, > > When starting sqlite3Explorer an error message appears: > "The procedure entry point GdiGradientFill could not be > located in the dll GDI32.dll" > > How can I proceed? >
答复: 4p84: [sqlite] Sqlite causes exit error under symbian!
Thanks for your reply
I have changed my code as below:
> > > sqlite *db;
> > > char *zErrMsg = 0;
> > > db = sqlite_open("test.db", 0, );
> > > sqlite_close(db);
> > > db = NULL;
Now I am sure that zErrMsg is NULL after sqlite_open(),and I don't get the
"-DOS_UNIX" in my complier , btw ,I use vc6 +sp5 .
Regards,
Steven Liu
-邮件原件-
发件人: Dan Kennedy [mailto:[EMAIL PROTECTED]
发送时间: 2005年4月5日 14:57
收件人: sqlite-users@sqlite.org
主题: Re: 4p84: [sqlite] Sqlite causes exit error under symbian!
> I do have try your suggestion, but it seems to no effect :(
> For Symbian OS it is very strict with the memory assignation, u must call
> closeSTDLIB() after using some stdlib functions otherwise u will got the
> exit error.
> So I guess my issue like that But I have no idea about what to deal with
the
> sqlite_open() such as closeSTDLIB().
> > > here is my code :
> > >
> > > sqlite *db;
> > > char *zErrMsg = 0;
> > > db = sqlite_open("test.db", 0, );
> > > sqlite_close(db);
> > > db = NULL;
> > > delete db;
Call closeSTDLIB() before exiting then. SQLite might be using
some of those functions.
Also, check if zErrMsg is still NULL after the sqlite_open call .
SQLite may have allocated space for an error message. Back in
version 2 you had to free this yourself. Something like:
if( zErrMsg ){
sqlite_free(zErrMsg);
}
Question: does "-DOS_UNIX" appear as a compiler option when you
are building it? If so there might be a couple of bytes allocated
for a static hash table that aren't being freed.
__
Yahoo! Messenger
Show us what our next emoticon should look like. Join the fun.
http://www.advision.webevents.yahoo.com/emoticontest
Re: ´ð¸´: [sqlite] Sqlite causes exit error under symbian!
> I do have try your suggestion, but it seems to no effect :(
> For Symbian OS it is very strict with the memory assignation, u must call
> closeSTDLIB() after using some stdlib functions otherwise u will got the
> exit error.
> So I guess my issue like that But I have no idea about what to deal with the
> sqlite_open() such as closeSTDLIB().
> > > here is my code :
> > >
> > > sqlite *db;
> > > char *zErrMsg = 0;
> > > db = sqlite_open("test.db", 0, );
> > > sqlite_close(db);
> > > db = NULL;
> > > delete db;
Call closeSTDLIB() before exiting then. SQLite might be using
some of those functions.
Also, check if zErrMsg is still NULL after the sqlite_open call .
SQLite may have allocated space for an error message. Back in
version 2 you had to free this yourself. Something like:
if( zErrMsg ){
sqlite_free(zErrMsg);
}
Question: does "-DOS_UNIX" appear as a compiler option when you
are building it? If so there might be a couple of bytes allocated
for a static hash table that aren't being freed.
__
Yahoo! Messenger
Show us what our next emoticon should look like. Join the fun.
http://www.advision.webevents.yahoo.com/emoticontest
答复: [sqlite] Sqlite causes exit error under symbian!
Thanks for reply!
I do have try your suggestion, but it seems to no effect :(
For Symbian OS it is very strict with the memory assignation, u must call
closeSTDLIB() after using some stdlib functions otherwise u will got the
exit error.
So I guess my issue like that But I have no idea about what to deal with the
sqlite_open() such as closeSTDLIB().
Regards,
Steven Liu
-邮件原件-
发件人: Thomas Fjellstrom [mailto:[EMAIL PROTECTED]
发送时间: 2005年4月5日 14:06
收件人: sqlite-users@sqlite.org
主题: Re: [sqlite] Sqlite causes exit error under symbian!
On April 4, 2005 11:58 pm, Dan Kennedy wrote:
> --- StevenLiu <[EMAIL PROTECTED]> wrote:
> > here is my code :
> >
> > sqlite *db;
> > char *zErrMsg = 0;
> > db = sqlite_open("test.db", 0, );
> > sqlite_close(db);
> > db = NULL;
> > delete db;
>
> ^
>
> Maybe leave that bit out. That's for deleting objects
> allocated with 'new', not SQLite handles.
>
especially since it was set to NULL just before.
--
Thomas Fjellstrom
[EMAIL PROTECTED]
Re: [sqlite] Sqlite causes exit error under symbian!
On April 4, 2005 11:58 pm, Dan Kennedy wrote:
> --- StevenLiu <[EMAIL PROTECTED]> wrote:
> > here is my code :
> >
> > sqlite *db;
> > char *zErrMsg = 0;
> > db = sqlite_open("test.db", 0, );
> > sqlite_close(db);
> > db = NULL;
> > delete db;
>
> ^
>
> Maybe leave that bit out. That's for deleting objects
> allocated with 'new', not SQLite handles.
>
especially since it was set to NULL just before.
--
Thomas Fjellstrom
[EMAIL PROTECTED]
