Re: [sqlite] Proposed new sqlite3_open_v3() interface - offt

2010-07-02 Thread Andy Gibbs
On Thursday, July 01, 2010 9:56 PM, Miha Vrhovnik wrote: It's time to get rid of your current e-mail client ... ... and start using si.Mail. It's small free. ( http://www.simail.si/ ) A nice little advert and out of curiosity I went to the website and had a little look around. I assume

Re: [sqlite] problem with auto boot

2010-07-02 Thread Daniel
Am 02.07.2010 00:40, schrieb Simon Slavin: On 1 Jul 2010, at 11:56am, Daniel Jung wrote: My problem: I wrote a simple program in c-sharp. This program does refers to a sqlite database. The program is in my auto boot so it shall run by starting by pc. But every time the is an exception

Re: [sqlite] EXTERNAL:Re: problem with auto boot

2010-07-02 Thread Black, Michael (IS)
Daniel -- you need to give more info C#'s exception messages are terrible and very non-specific as they simply indicate failure and not why. Use the C function fopen() to test your database file. If you get an error back In your simple program display a dialog box with the

Re: [sqlite] EXTERNAL: Bug with commandline option -csv and -separator

2010-07-02 Thread Black, Michael (IS)
I think -csv is, in essence, just a shorthand for -separator , So in your first example you override it your semicolon with the -csv option. Not a bug at all unless you think it should warn you every time you change the separator (which would seem a bit much). Michael D. Black Senior

Re: [sqlite] problem with auto boot

2010-07-02 Thread Simon Slavin
On 2 Jul 2010, at 9:26am, Daniel wrote: My problem: I wrote a simple program in c-sharp. This program does refers to a sqlite database. The program is in my auto boot so it shall run by starting by pc. But every time the is an exception that the database could not be opened. I have no idea

Re: [sqlite] UPDATE without a JOIN

2010-07-02 Thread Jones, Matthew
Great thanks. Now why didn't I think of that especially as I was messing around with ROWID earlier? Cheers update TABLE2 set z = @z where rowid in ( select t2.rowid from TABLE1_2 t12, TABLE2 t2 where t12.a = @a and t12.b = @b and t2.x = t12.x and t2.y = t12.y ) Pavel

[sqlite] How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread Peng Yu
Hi, SELECT DISTINCT type_id FROM foods; If I use 'distinct', any entry that shows up greater or equal to one time will only appear once. But I want to select an entry that appears =n times and only show n times if it appears more than n times. I think that group by might help. But I'm not

Re: [sqlite] How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread P Kishor
On Fri, Jul 2, 2010 at 11:15 AM, Peng Yu pengyu...@gmail.com wrote: Hi, SELECT DISTINCT type_id FROM foods; If I use 'distinct', any entry that shows up greater or equal to one time will only appear once. But I want to select an entry that appears =n times and only show n times if it

Re: [sqlite] How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread P Kishor
On Fri, Jul 2, 2010 at 11:19 AM, P Kishor punk.k...@gmail.com wrote: On Fri, Jul 2, 2010 at 11:15 AM, Peng Yu pengyu...@gmail.com wrote: Hi, SELECT DISTINCT type_id FROM foods; If I use 'distinct', any entry that shows up greater or equal to one time will only appear once. But I want to

Re: [sqlite] How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread Peng Yu
On Fri, Jul 2, 2010 at 11:19 AM, P Kishor punk.k...@gmail.com wrote: On Fri, Jul 2, 2010 at 11:19 AM, P Kishor punk.k...@gmail.com wrote: On Fri, Jul 2, 2010 at 11:15 AM, Peng Yu pengyu...@gmail.com wrote: Hi, SELECT DISTINCT type_id FROM foods; If I use 'distinct', any entry that shows up

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread Black, Michael (IS)
I don't know about anybody else but I can't tell what you want to do. Have you got some sample data and the results you expect from it? Michael D. Black Senior Scientist Northrop Grumman Mission Systems From: sqlite-users-boun...@sqlite.org on behalf of

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread Jim Morris
Maybe this? SELECTwhatever column, min(Count(type_id),n) FROM foods GROUP BYwhatever column ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users

Re: [sqlite] How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread Pavel Ivanov
But this doesn't show anything that count more than n times. I want the type_id shows up more than n times in the database only appear n times in the result of the query. That's some exotic requirements you've got there. Is it possible to elaborate them? Probably your best solution is not in

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread P Kishor
On Fri, Jul 2, 2010 at 11:35 AM, Black, Michael (IS) michael.bla...@ngc.com wrote: I don't know about anybody else but I can't tell what you want to do. Have you got some sample data and the results you expect from it? Michael D. Black Senior Scientist Northrop Grumman Mission Systems

Re: [sqlite] problem with auto boot

2010-07-02 Thread Roger Andersson
Ämne: [sqlite] problem with auto boot Hi, no idea if it's the right way or place but I have a question about the sqlite database. I did not found any solution in other forums or by using google. My problem: I wrote a simple program in c-sharp. This program does refers to a sqlite

Re: [sqlite] How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread Simon Slavin
On 2 Jul 2010, at 5:15pm, Peng Yu wrote: I want to select an entry that appears =n times and only show n times if it appears more than n times. I think that group by might help. There's no simple format which will do what you want. Do it in software. Simon.

Re: [sqlite] How to select an entry that appears =n times and only show n times if it appears more than n times?

2010-07-02 Thread Jim Morris
Are you thinking of limit? On 7/2/2010 9:58 AM, Simon Slavin wrote: On 2 Jul 2010, at 5:15pm, Peng Yu wrote: I want to select an entry that appears =n times and only show n times if it appears more than n times. I think that group by might help. There's no simple format which

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =ntimes and only show n times if it appears more than n times?

2010-07-02 Thread Igor Tandetnik
P Kishor punk.k...@gmail.com wrote: I think what Peng wants is that given table of type_id 5 5 5 5 5 4 4 4 7 7 8 8 8 8 if 'n' is 3, the desired result is 5 5 5 4 4 4 7 7 8 8 8 I don't know how to do that with sql. Well, if you insist: select type_id from foods

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =ntimes and only show n times if it appears more than n times?

2010-07-02 Thread Simon Slavin
On 2 Jul 2010, at 6:06pm, Igor Tandetnik wrote: select type_id from foods f1 where ( select count(*) from foods f2 where f2.type_id = f1.type_id and f2.rowid f1.rowid) 3; Clever. Simon. ___ sqlite-users mailing list

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =ntimes and only show n times if it appears more than n times?

2010-07-02 Thread P Kishor
On Fri, Jul 2, 2010 at 12:06 PM, Igor Tandetnik itandet...@mvps.org wrote: P Kishor punk.k...@gmail.com wrote: I think what Peng wants is that given table of type_id 5 5 5 5 5 4 4 4 7 7 8 8 8 8 if 'n' is 3, the desired result is 5 5 5 4 4 4 7 7 8 8 8 I don't know

[sqlite] Multithreading support approach

2010-07-02 Thread Cargnelutti, Pablo Fernando
Hi all, I'm a beginner user of this tool. I have to questions. What would be the better approach to multithread support for sqlite using C++ API? I'm currently try to block, using boost mutex, locks and condition variables, all calls to step method that attempts to modify the DB. Sqlite

Re: [sqlite] How to select an entry that appears lt; =n times and only show n times if it appears more th an n times?

2010-07-02 Thread Oliver Peters
Peng Yu pengyu...@... writes: Hi, SELECT DISTINCT type_id FROM foods; If I use 'distinct', any entry that shows up greater or equal to one time will only appear once. But I want to select an entry that appears =n times and only show n times if it appears more than n times. I think

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears=ntimes and only show n times if it appears more than n times?

2010-07-02 Thread Igor Tandetnik
Igor Tandetnik itandet...@mvps.org wrote: P Kishor punk.k...@gmail.com wrote: I think what Peng wants is that given table of type_id 5 5 5 5 5 4 4 4 7 7 8 8 8 8 if 'n' is 3, the desired result is 5 5 5 4 4 4 7 7 8 8 8 I don't know how to do that with sql.

Re: [sqlite] How to select an entry that appears amp;l t;=n times and only show n times if it appears mor e than n times?

2010-07-02 Thread Oliver Peters
o.k., got it - next time I'll read twice (at least ;-) ) ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users

Re: [sqlite] Multithreading support approach

2010-07-02 Thread Simon Slavin
On 2 Jul 2010, at 6:14pm, Cargnelutti, Pablo Fernando wrote: Sqlite implements table level lock? No. SQLite locks the entire database file with all tables and views in it. Simon. ___ sqlite-users mailing list sqlite-users@sqlite.org

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =ntimes and only show n times if it appears more than n times?

2010-07-02 Thread Gerry Snyder
On 7/2/2010 10:09 AM, P Kishor wrote: I was going to add That is an Igor-question to I don't know how to do that with sql. I have no idea how you do this, but if ever I meet you in person, I will be too awestruck to say anything beyond SELECT.. From me it would more likely be an irate

Re: [sqlite] EXTERNAL:Re: How to select an entry that appears =ntimes and only show n times if it appears more than n times?

2010-07-02 Thread python
Another +1 on the awestruck! Malcolm ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users

Re: [sqlite] Multithreading support approach

2010-07-02 Thread Greg Burd
I think this will change with SQLite 3.7's new Write Ahead Logging (WAL) feature. Over in the Berkeley DB team we have put a btree that implements transactional storage based on WAL under the SQLite parser/processor. This technique can support a different locking model and lead to a very high

Re: [sqlite] Multithreading support approach

2010-07-02 Thread Cargnelutti, Pablo Fernando
Thanks Greg I will check your version :) Pablo -Original Message- From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Greg Burd Sent: Friday, July 02, 2010 3:27 PM To: General Discussion of SQLite Database Subject: Re: [sqlite] Multithreading

[sqlite] loading data from file with the file name as the extra field

2010-07-02 Thread Peng Yu
Hi, Suppose that I have a number of files, each file has some numbers in it (by line). I want to load the content of each file and the associated filename into the following table. create table test (id integer primary key, filename text, number integer); For example, if file 'a' has number

Re: [sqlite] working with existing (look-up) database in Android/Eclipse

2010-07-02 Thread Simon Slavin
On 2 Jul 2010, at 9:00pm, c...@comcast.net wrote: I then created a sub-folder in my Eclipse Android project structure under the assets folder and named it databases. Is this the correct place to put a database file? You can put your database file anywhere you have read/write privilages.

Re: [sqlite] loading data from file with the file name as the extra field

2010-07-02 Thread Jim Morris
Try creating a script file something like(Psuedo code): .separator , CREATE TEMP TABLE dummy (value); .import file1.csv dummy INSERT INTO TEST (filename,number) (SELECT 'file1.csv', value FROM dummy; delete from dummy; .import file2.csv dummy INSERT INTO TEST (filename,number) (SELECT 'file2.csv',

Re: [sqlite] working with existing (look-up) database in Android/Eclipse

2010-07-02 Thread ca44
Hi Simon, Thanks very much for getting back to me. You wrote - Specify the full path of your file when you open the file.  For example /assets/databases/events.db. That is my problem, I don't know how to do that. Based on my current [limited] understanding of how Android opens a

Re: [sqlite] working with existing (look-up) database in Android/Eclipse

2010-07-02 Thread Simon Slavin
On 3 Jul 2010, at 12:06am, c...@comcast.net wrote: Snce the db is going to be created the 1st time thru the OnCreate() method s/b called to create the only tbl. public EventsData(Context ctx) { super (ctx, DATABASE_NAME , null , DATABASE_VERSION ); } What is the contents of

[sqlite] How to supply no values when inserting a record?

2010-07-02 Thread Peng Yu
Hi, create table test (value text default 'unknown', value2 text default 'unknown'); insert into test (value) values('xxx'); The above code works correctly. But if there is only one column with a default value, I don't see how to insert a record with the default value. I tried the following two

Re: [sqlite] How to supply no values when inserting a record?

2010-07-02 Thread Pavel Ivanov
I tried the following two commands. Neither of them work. Would you please let me know what is the command to insert a record with the default value? Try this: insert into test default values; Pavel On Fri, Jul 2, 2010 at 9:40 PM, Peng Yu pengyu...@gmail.com wrote: Hi, create table test

Re: [sqlite] How to supply no values when inserting a record?

2010-07-02 Thread P Kishor
On Fri, Jul 2, 2010 at 8:52 PM, Pavel Ivanov paiva...@gmail.com wrote: I tried the following two commands. Neither of them work. Would you please let me know what is the command to insert a record with the default value? Try this: insert into test default values; Peng, Now that Pavel has

Re: [sqlite] How to supply no values when inserting a record?

2010-07-02 Thread P Kishor
On Fri, Jul 2, 2010 at 9:28 PM, Peng Yu pengyu...@gmail.com wrote: On Fri, Jul 2, 2010 at 8:58 PM, P Kishor punk.k...@gmail.com wrote: On Fri, Jul 2, 2010 at 8:52 PM, Pavel Ivanov paiva...@gmail.com wrote: I tried the following two commands. Neither of them work. Would you please let me know

Re: [sqlite] Escaping binary data

2010-07-02 Thread Andrew Wood
Thank you ___ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users