[sqlite] Supporting databases larger than 2GB on FAT filesystems?
Does Sqlite support databases larger than 2GB on FAT filesystems? If not, how hard would it be to add so it uses additional files for the pages that don't fit in the first file? Thanks Ludvig
RE: [sqlite] Supporting databases larger than 2GB on FAT filesystems?
You can break up the db into multiple databases and attach them to the same connection. That would be easiest approach (as long as one individual table is not bigger than 2gb). Sam --- We're Hiring! Seeking a passionate developer to join our team building products. Position is in the Washington D.C. metro area. If interested contact [EMAIL PROTECTED] -Original Message- From: Ludvig Strigeus [mailto:[EMAIL PROTECTED] Sent: Friday, April 13, 2007 2:32 PM To: [EMAIL PROTECTED] Subject: [sqlite] Supporting databases larger than 2GB on FAT filesystems? Does Sqlite support databases larger than 2GB on FAT filesystems? If not, how hard would it be to add so it uses additional files for the pages that don't fit in the first file? Thanks Ludvig - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Supporting databases larger than 2GB on FAT filesystems?
It is limited by the maximum file size on your OS. You can make a multiple file database by ATTACHing more than one database. Ludvig Strigeus wrote: Does Sqlite support databases larger than 2GB on FAT filesystems? If not, how hard would it be to add so it uses additional files for the pages that don't fit in the first file? Thanks Ludvig - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Supporting databases larger than 2GB on FAT filesystems?
I would like to have a single table larger than 2GB...though. /Ludvig On 4/13/07, John Stanton <[EMAIL PROTECTED]> wrote: It is limited by the maximum file size on your OS. You can make a multiple file database by ATTACHing more than one database. Ludvig Strigeus wrote: > Does Sqlite support databases larger than 2GB on FAT filesystems? > > If not, how hard would it be to add so it uses additional files for the > pages that don't fit in the first file? > > Thanks > Ludvig > - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Supporting databases larger than 2GB on FAT filesystems?
Use a file system with 64 bit addressing. Ludvig Strigeus wrote: I would like to have a single table larger than 2GB...though. /Ludvig On 4/13/07, John Stanton <[EMAIL PROTECTED]> wrote: It is limited by the maximum file size on your OS. You can make a multiple file database by ATTACHing more than one database. Ludvig Strigeus wrote: > Does Sqlite support databases larger than 2GB on FAT filesystems? > > If not, how hard would it be to add so it uses additional files for the > pages that don't fit in the first file? > > Thanks > Ludvig > - To unsubscribe, send email to [EMAIL PROTECTED] - - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Supporting databases larger than 2GB on FAT filesystems?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Ludvig Strigeus wrote: > I would like to have a single table larger than 2GB...though. FAT16 has a maximum file size of 2GB. FAT32 (the most common one in use today) has a maximum file size of 4GB. It is impossible to have single files larger than those sizes. See http://en.wikipedia.org/wiki/File_Allocation_Table SQLite does not support splitting the database across multiple files behind the scenes. (Other database implementations such as Postgres can, but they aren't 'lite'). You can partition your table across multiple databases, each less than 2GB but all of your SQL code will have to be aware of that. An alternative is to use virtual tables which will let you present the impression of a single table, while accessing the partitioned table behind the scenes. http://www.sqlite.org/cvstrac/wiki?p=VirtualTables Roger -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFGIFqjmOOfHg372QQRApLSAJ4kanFb0aEaXSdzV+UXG/2PNFIWmQCeO3O1 dqatDP3qYpoU4QRne554f4w= =jJdQ -END PGP SIGNATURE- - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Supporting databases larger than 2GB on FAT filesystems?
"Ludvig Strigeus" <[EMAIL PROTECTED]> wrote: > Does Sqlite support databases larger than 2GB on FAT filesystems? SQLite supports large databases just fine. It is FAT that does not support large files. > > If not, how hard would it be to add so it uses additional files for the > pages that don't fit in the first file? > The OS interface in SQLite is modular and interchangable. If you compile with -DSQLITE_ENABLE_REDEF_IO=1, you can even interchange the OS interface layer at runtime. I suggest you write a new OS interface layer specifically for FAT that allows the SQLite core to open, read, and write a single file, but which splits the reads and writes across multiple files where each of the multiple files is less than 2GB. -- D. Richard Hipp <[EMAIL PROTECTED]> - To unsubscribe, send email to [EMAIL PROTECTED] -
Re: [sqlite] Supporting databases larger than 2GB on FAT filesystems?
Alright thanks! I will look into that. /Ludvig On 4/14/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: "Ludvig Strigeus" <[EMAIL PROTECTED]> wrote: > Does Sqlite support databases larger than 2GB on FAT filesystems? SQLite supports large databases just fine. It is FAT that does not support large files. > > If not, how hard would it be to add so it uses additional files for the > pages that don't fit in the first file? > The OS interface in SQLite is modular and interchangable. If you compile with -DSQLITE_ENABLE_REDEF_IO=1, you can even interchange the OS interface layer at runtime. I suggest you write a new OS interface layer specifically for FAT that allows the SQLite core to open, read, and write a single file, but which splits the reads and writes across multiple files where each of the multiple files is less than 2GB. -- D. Richard Hipp <[EMAIL PROTECTED]> - To unsubscribe, send email to [EMAIL PROTECTED] -
