Re: [sqlite] Math functions
yes you can implement math functions with user defined functions by the sqlite3_create_function. sqlite.org is your freind :) 2007/4/4, Nathan Biggs <[EMAIL PROTECTED]>: Does anyone know if there is a floor function in sqlite, or of a way to implement it.
Re: [sqlite] Transferring the oracle databse to sqlite database
a way to export your database is to generate the sql script database to a file, and from sqlite type '.read path_to_file/file' if it doesn't work try to change the sql script exported so it can be understanded by sqlite for example delete stored procedure and change triggers if any way you have triggers or stored procedures. 2007/3/28, Amarjeet Kumar (RBIN/ECM4) <[EMAIL PROTECTED]>: Hi, I wanted to use the sqlite database. Currently I am using the oracle database. Is there any way to import the oracle database to sqlite database? If so plz. tell me. Thanks in advance. With warm regards, Amar
Re: [sqlite] Sqlite for Embedded Devices
I'm using sqlite on embedded device and I didn't have issues till now. good performance and scalability. 2007/3/1, Jakub Ladman <[EMAIL PROTECTED]>: Dne čtvrtek 01 březen 2007 13:11 Pavan napsal(a): > Hi, > > Could anyone share their observations/comments on having used sqlite as DB > for embedded linux environment. I have just started. Now i have sqlite compiled for embedded linux based on kernel 2.4.18 and uclibc library on Renesas SuperH cpu SH7760, it seems to be working good, but i am thorough beginner in SQL technology generally. Maybe later ... Jakub > > Thanks, > Pavan. - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Crosscompiled sqlite was: developer mailing list
you must change the configure file to use the tool chain to cross compile your lib. you must do modifications like gcc becomes gcc-arm-linux for example. but what kind of target do you have? do you have a tool chain 2007/2/27, Jakub Ladman <[EMAIL PROTECTED]>: Dne úterý 27 únor 2007 16:31 anis chaaba napsal(a): > you need the libsqlite.so.0... or the libsqlite3.so crosscompiled :-( there is no .so file :-( Jakub > if you need the commande line copy sqlite3 or sqlite to your target > > 2007/2/27, Jakub Ladman <[EMAIL PROTECTED]>: > > Hi everybody > > Which files do i need at target (small embedded linux system)? > > > > after make i have these files > > > > alter.ohash.o opcodes.o pragma.o utf.o > > analyze.o insert.o os.o prepare.o util.o > > attach.o keywordhash.h os_os2.o printf.o vacuum.o > > auth.o legacy.o os_unix.o random.o vdbe.o > > btree.olemon os_win.o select.o vdbeapi.o > > build.olempar.c pager.osqlite3vdbeaux.o > > callback.o libsqlite3.a parse.csqlite3.h vdbefifo.o > > complete.o loadext.o parse.htable.ovdbemem.o > > date.o main.o parse.h.temp tclsqlite.ovtab.o > > delete.o mkkeywordhash parse.otokenize.o where.o > > expr.o opcodes.c parse.out trigger.o > > func.o opcodes.h parse.yupdate.o > > /mnt/nfs/home/jakub/shsqlite $ > > > > > > Which files are necessary for running, and which for linking to my own C > > programs? > > > > And what should i do with this? > > > > SQLite version 3.3.13 > > Enter ".help" for instructions > > sqlite> create table tbl1(one varchar(10), two smallint); > > SQL error: database is locked > > sqlite> > > > > > > Thank you > > Jakub Ladman > > > > > > > > > > - > > To unsubscribe, send email to [EMAIL PROTECTED] > > > > - > > - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] SQL error: database is locked
there's another process using the data base or executing a transaction 2007/2/27, Jakub Ladman <[EMAIL PROTECTED]>: Dear Friends Please let me know what should i do with this? SQLite version 3.3.13 Enter ".help" for instructions sqlite> create table tbl1(one varchar(10), two smallint); SQL error: database is locked sqlite> (sqlite is launched by root) Jakub Ladman - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Crosscompiled sqlite was: developer mailing list
you need the libsqlite.so.0... or the libsqlite3.so crosscompiled if you need the commande line copy sqlite3 or sqlite to your target 2007/2/27, Jakub Ladman <[EMAIL PROTECTED]>: Hi everybody Which files do i need at target (small embedded linux system)? after make i have these files alter.ohash.o opcodes.o pragma.o utf.o analyze.o insert.o os.o prepare.o util.o attach.o keywordhash.h os_os2.o printf.o vacuum.o auth.o legacy.o os_unix.o random.o vdbe.o btree.olemon os_win.o select.o vdbeapi.o build.olempar.c pager.osqlite3vdbeaux.o callback.o libsqlite3.a parse.csqlite3.h vdbefifo.o complete.o loadext.o parse.htable.ovdbemem.o date.o main.o parse.h.temp tclsqlite.ovtab.o delete.o mkkeywordhash parse.otokenize.o where.o expr.o opcodes.c parse.out trigger.o func.o opcodes.h parse.yupdate.o /mnt/nfs/home/jakub/shsqlite $ Which files are necessary for running, and which for linking to my own C programs? And what should i do with this? SQLite version 3.3.13 Enter ".help" for instructions sqlite> create table tbl1(one varchar(10), two smallint); SQL error: database is locked sqlite> Thank you Jakub Ladman - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Re: trigger with conditions
Thx :) 2007/2/26, Igor Tandetnik <[EMAIL PROTECTED]>: anis chaaba <[EMAIL PROTECTED]> wrote: > Can you tell how can i trigger with conditions such as: > create trigger foo > begin > if (NEW.VALUE = 'something') > insert into tables values.. > endif > END; http://sqlite.org/lang_createtrigger.html create trigger foo after update on someTable when new.value = 'something' begin ... end; Igor Tandetnik - To unsubscribe, send email to [EMAIL PROTECTED] -
[sqlite] trigger with conditions
Hello people, Can you tell how can i trigger with conditions such as: create trigger foo begin if (NEW.VALUE = 'something') insert into tables values.. endif END; thanks in advance - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Select and deletion
with which language are you trying to do this? to execute the delete statement you can use transactions to ensure atomicity. regards,
Re: [sqlite] database is locked
I have multiple thread reading the database and a thread inserting in or updating the database. when i try to simulate this case by executing sqlite3 from shell by beginning a transaction from a shell and retrieving data from other shell eveything works fine. But when it's the cas from my C program it raises the error message database is locked. How can i avoid this issue? thanks a lot 2007/2/5, Dennis Cote <[EMAIL PROTECTED]>: anis chaaba wrote: > Hello > Please can you tell me how can i avoid having error message "database is > locked'? > thanks > You will have to provide more details about exactly what you are doing and how you are doing it for anybody to be able to assist you. SQLite does support multiple process accessing the database. This page explains the nature of your error in more detail http://www.sqlite.org/cvstrac/wiki?p=DatabaseIsLocked HTH Dennis Cote - To unsubscribe, send email to [EMAIL PROTECTED] -
[sqlite] database is locked
Hello Please can you tell me how can i avoid having error message "database is locked'? thanks
Re: [sqlite] Re: Shared Lock Transactions
How do I enable shared locking? 2007/1/25, Ken <[EMAIL PROTECTED]>: From os_unix.h:... After reading this, locking makes more sense! Although the Lock may physically be an exclusive lock, the implementation is actually a logcially "SHARED" lock. /* The following describes the implementation of the various locks and ** lock transitions in terms of the POSIX advisory shared and exclusive ** lock primitives (called read-locks and write-locks below, to avoid ** confusion with SQLite lock names). The algorithms are complicated ** slightly in order to be compatible with windows systems simultaneously ** accessing the same database file, in case that is ever required. ** ** Symbols defined in os.h indentify the 'pending byte' and the 'reserved ** byte', each single bytes at well known offsets, and the 'shared byte ** range', a range of 510 bytes at a well known offset. ** ** To obtain a SHARED lock, a read-lock is obtained on the 'pending ** byte'. If this is successful, a random byte from the 'shared byte ** range' is read-locked and the lock on the 'pending byte' released. ** ** A process may only obtain a RESERVED lock after it has a SHARED lock. ** A RESERVED lock is implemented by grabbing a write-lock on the ** 'reserved byte'. ** ** A process may only obtain a PENDING lock after it has obtained a ** SHARED lock. A PENDING lock is implemented by obtaining a write-lock ** on the 'pending byte'. This ensures that no new SHARED locks can be ** obtained, but existing SHARED locks are allowed to persist. A process ** does not have to obtain a RESERVED lock on the way to a PENDING lock. ** This property is used by the algorithm for rolling back a journal file ** after a crash. ** ** An EXCLUSIVE lock, obtained after a PENDING lock is held, is ** implemented by obtaining a write-lock on the entire 'shared byte ** range'. Since all other locks require a read-lock on one of the bytes ** within this range, this ensures that no other locks are held on the ** database. ** ** The reason a single byte cannot be used instead of the 'shared byte ** range' is that some versions of windows do not support read-locks. By ** locking a random byte from a range, concurrent SHARED locks may exist ** even if the locking primitive used is always a write-lock. */ "A. Pagaltzis" <[EMAIL PROTECTED]> wrote: * Jay Sprenkle [2007-01-22 15:20]: > My understanding was that a "shared lock" is a metaphor, and > IMHO, a fairly stupid one. If you lock a room, nobody else can > get in, it's not a mechanism for sharing, it's a mechanism for > preventing sharing. Reasoning by analogy rarely leads to anything but a fallacy. A shared lock prevents exclusive locks from being granted and an exclusive lock prevents shared locks from being granted, so I'm not sure what sort of sharing/preventing business you're talking about anyway. Regards, -- Aristotle Pagaltzis // - To unsubscribe, send email to [EMAIL PROTECTED] -
[sqlite] database is locked
Hello, I have processes that access to my database, one writing on it and the other just reading. when this case take place an error message occure saying that database is locked. I saw in sqlite3 docs that sqlite3 enable this type of access but i don't know how can I activate this option. Is that by compiling sqlite3 with a special option or by specifying this option in my c acess code? thanks in advance for help
Re: [sqlite] how to cross compile sqlite 3
thanks i've user sqlite 3.3.11.tar.gz and i made some modifications on configure and make file and it works 2007/2/1, C.Peachment <[EMAIL PROTECTED]>: On Thu, 1 Feb 2007 10:41:25 +0100, anis chaaba wrote: >I'm cross compiling sqlite3 for arm and there's errors in the >configure and the makefile generated. >Do anyone of you cross compiled sqlite3? >thanks in advance Using the preprocessed source code in sqlite-source-3_3_12.zip lets you avoid the problems of configure checking the host computer attributes when it should specify the target computer attributes. I have compiled this source for both linux-arm and windows-pc without issues. Chris Peachment - To unsubscribe, send email to [EMAIL PROTECTED] -
[sqlite] how to cross compile sqlite 3
Hello everybody I'm cross compiling sqlite3 for arm and there's errors in the configure and the makefile generated. Do anyone of you cross compiled sqlite3? thanks in advance - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] [Fwd: rummage bin of C API questions]
2007/1/25, anis chaaba <[EMAIL PROTECTED]>:hello 1-I'm trying to remember and i think that all routines that execute queries need to free the error message variable like sqlite_exec or others. 2- No transactions fail while you're writing clean code 3- While u'r allocationg and freeing all your pointers and opening/closing connections you won't have problems 4-for the fourth question an example would be appreciated If you having problems with code please send us error messages and code samples 2007/1/25, Lucas (a.k.a T-Bird or bsdfan3) <[EMAIL PROTECTED]>: Please bear with me here, as this list may seem rather long. 1) Which of the C API routines allocate memory that my code must free? 2) Can COMMIT TRANSACTION and ROLLBACK TRANSACTION fail? 3) Which of the C API routines cannot fail? 4) C API routines with pointer return values return NULL if they cannot allocate sufficient memory, right? --T-Bird/bsdfan3/Lucas - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] sqlite3 lib do not open old sqlite databases
thanks man 2007/1/22, Trey Mack <[EMAIL PROTECTED]>: From http://www.sqlite.org/formatchng.html "Version 3.0.0 is a major upgrade for SQLite that incorporates support for UTF-16, BLOBs, and a more compact encoding that results in database files that are typically 25% to 50% smaller. The new file format is very different and is completely incompatible with the version 2 file format." At the bottom of that page are some suggestions for upgrading your database to the current format. - Trey - Original Message ----- From: "anis chaaba" <[EMAIL PROTECTED]> To: <sqlite-users@sqlite.org> Sent: Monday, January 22, 2007 11:15 AM Subject: [sqlite] sqlite3 lib do not open old sqlite databases > Hello everybody > I'm moving from sqlite 2.8.17 to sqlite3.3.11 but when i'm trying to open > my > databases created with sqlite 2.8.X i have this error message: > file is encrypted or is not a database > Is that normal or did i have a mistake somewhere? > Thank you for your help in advance > - To unsubscribe, send email to [EMAIL PROTECTED] -
[sqlite] php sqlite compliance
Can you please tell me what version of sqlite is supported by php5? Thanks in advance
[sqlite] sqlite3 lib do not open old sqlite databases
Hello everybody I'm moving from sqlite 2.8.17 to sqlite3.3.11 but when i'm trying to open my databases created with sqlite 2.8.X i have this error message: file is encrypted or is not a database Is that normal or did i have a mistake somewhere? Thank you for your help in advance
