Re: [sqlite] Can't create empty database
On Mon, Jun 25, 2012 at 01:01:46AM -0700, L Anderson wrote: > Googling on how to create a sqlite database (empty one) it appears > I need only do 'sqlite3 test.db'. However, when I try that I get: > > ->sqlite3 test.db > SQLite version 3.7.13 2012-06-11 02:05:22 > Enter ".help" for instructions > Enter SQL statements terminated with a ";" > sqlite> > > however, no database is created. What am I doing wrong and what > do I need to do to create an empty database 'test.db'? Perhaps you have to fill the database with some of your own data (and later delete them if you want really empty DB). Otherwise it will not even remember your PRAGMA settings etc.: $ rm -f test.db $ sqlite3 test.db "pragma page_size=512;" $ wc -c test.db 0 test.db $ sqlite3 test.db "pragma page_size;" 1024 $ sqlite3 test.db "pragma page_size=512; create table t(c);drop table t;vacuum;" $ wc -c test.db 512 test.db $ sqlite3 test.db "pragma page_size;" 512 $ Valentin Davydov. ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Can't create empty database
On 25 Jun 2012, at 12:48, Black, Michael (IS) wrote: > Well...it doesnt' any more on Windows and Linux at least as of 3.7.9 > > The file doesn't get created until you execute at least one command relevant > to it. > > So do a .schema or .dump or such and it creates the empty file. > > Or just enter a ";" and it will create it too (ergo the "" works from the > command line). I'm sorry. I live on a Mac with 3.6.12. Thanks for bringing me up to date. /Niall ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Can't create empty database
Well...it doesnt' any more on Windows and Linux at least as of 3.7.9 The file doesn't get created until you execute at least one command relevant to it. So do a .schema or .dump or such and it creates the empty file. Or just enter a ";" and it will create it too (ergo the "" works from the command line). Michael D. Black Senior Scientist Advanced Analytics Directorate Advanced GEOINT Solutions Operating Unit Northrop Grumman Information Systems From: sqlite-users-boun...@sqlite.org [sqlite-users-boun...@sqlite.org] on behalf of Niall O'Reilly [niall.orei...@ucd.ie] Sent: Monday, June 25, 2012 6:26 AM To: General Discussion of SQLite Database Subject: EXT :Re: [sqlite] Can't create empty database On 25 Jun 2012, at 11:06, L Anderson wrote: > So then on page 'http://www.sqlite.org/quickstart.html' > under 'Create A New Database', the first bullet: > > 'At a shell or DOS prompt, enter: "sqlite3 test.db". This will create a new > database named "test.db". (You can use a different name if you like.)' > > is not strictly correct. It has always worked for me. /N ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Can't create empty database
On 25 Jun 2012, at 11:06, L Anderson wrote: > So then on page 'http://www.sqlite.org/quickstart.html' > under 'Create A New Database', the first bullet: > > 'At a shell or DOS prompt, enter: "sqlite3 test.db". This will create a new > database named "test.db". (You can use a different name if you like.)' > > is not strictly correct. It has always worked for me. /N ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Can't create empty database
Oliver Peters wrote: Am 25.06.2012 10:01, schrieb L Anderson: Googling on how to create a sqlite database (empty one) it appears I need only do 'sqlite3 test.db'. However, when I try that I get: ->sqlite3 test.db SQLite version 3.7.13 2012-06-11 02:05:22 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> however, no database is created. What am I doing wrong and what do I need to do to create an empty database 'test.db'? Thanks, LA read http://souptonuts.sourceforge.net/readme_sqlite_tutorial.html for instruction how to use the CLI (sqlite3.exe or the Linux binary) Oliver Thanks for your reply. As it turns out, that's the very tutorial I used to run my test case. The tutorial shows: $ sqlite3 test.db SQLite version 3.0.8 Enter ".help" for instructions sqlite> .quit and I did: ->sqlite3 test.db SQLite version 3.7.13 2012-06-11 02:05:22 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> .q but did not get an empty file. As an OP pointed out, I needed 'sqlite3 test.db ""' I think this thread can now safely die--thanks all. Regards, LA ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Can't create empty database
Patrik Nilsson wrote: sqlite3 test.db "" It creates an empty file, zero bytes long. Thanks for your quick reply. So then on page 'http://www.sqlite.org/quickstart.html' under 'Create A New Database', the first bullet: 'At a shell or DOS prompt, enter: "sqlite3 test.db". This will create a new database named "test.db". (You can use a different name if you like.)' is not strictly correct. I guess I was expecting 'sqlite3 test.db' or even 'sqlite3 test.db ""' to have created an "empty database" that contained the 100 byte 'SQLite format 3' database header structure together with any internal tables such as 'sqlite_master' and not just an empty file. Regards, LA On 06/25/2012 10:01 AM, L Anderson wrote: Googling on how to create a sqlite database (empty one) it appears I need only do 'sqlite3 test.db'. However, when I try that I get: ->sqlite3 test.db SQLite version 3.7.13 2012-06-11 02:05:22 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> however, no database is created. What am I doing wrong and what do I need to do to create an empty database 'test.db'? Thanks, LA ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Can't create empty database
Am 25.06.2012 10:01, schrieb L Anderson: Googling on how to create a sqlite database (empty one) it appears I need only do 'sqlite3 test.db'. However, when I try that I get: ->sqlite3 test.db SQLite version 3.7.13 2012-06-11 02:05:22 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> however, no database is created. What am I doing wrong and what do I need to do to create an empty database 'test.db'? Thanks, LA read http://souptonuts.sourceforge.net/readme_sqlite_tutorial.html for instruction how to use the CLI (sqlite3.exe or the Linux binary) Oliver ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
Re: [sqlite] Can't create empty database
sqlite3 test.db "" It creates an empty file, zero bytes long. On 06/25/2012 10:01 AM, L Anderson wrote: > Googling on how to create a sqlite database (empty one) it appears > I need only do 'sqlite3 test.db'. However, when I try that I get: > > ->sqlite3 test.db > SQLite version 3.7.13 2012-06-11 02:05:22 > Enter ".help" for instructions > Enter SQL statements terminated with a ";" > sqlite> > > however, no database is created. What am I doing wrong and what > do I need to do to create an empty database 'test.db'? > > Thanks, > > LA > > ___ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
[sqlite] Can't create empty database
Googling on how to create a sqlite database (empty one) it appears I need only do 'sqlite3 test.db'. However, when I try that I get: ->sqlite3 test.db SQLite version 3.7.13 2012-06-11 02:05:22 Enter ".help" for instructions Enter SQL statements terminated with a ";" sqlite> however, no database is created. What am I doing wrong and what do I need to do to create an empty database 'test.db'? Thanks, LA ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
