Does disk io error is related to hardware issue? i mean, fsync() dint get
success on unix. so, this error may be thrown by sqlite. Is it?
On Fri, Dec 7, 2012 at 12:00 AM, Simon Slavin wrote:
>
> On 6 Dec 2012, at 6:13pm, Durga D wrote:
>
> > I suspect, linking among pages wil
n 6 Dec 2012, at 5:23pm, Durga D wrote:
>
> > Is it (corruption) related error code 10? (disk io)
> >
> > I would like to know, why sqlite throws disk io error while inserting
> > records...
>
> It doesn't matter. Run an in integrity check:
>
> <http:
Is it (corruption) related error code 10? (disk io)
I would like to know, why sqlite throws disk io error while inserting
records...
On Thu, Dec 6, 2012 at 10:43 PM, Simon Slavin wrote:
>
> On 6 Dec 2012, at 5:04pm, Durga D wrote:
>
> > i mean in second case. some records co
i mean in second case. some records corrupted but not all. How to recover
this?
On Thu, Dec 6, 2012 at 10:27 PM, Durga D wrote:
> Is there anyway to recover?
>
>
> On Thu, Dec 6, 2012 at 10:23 PM, Richard Hipp wrote:
>
>> On Thu, Dec 6, 2012 at 11:52 AM, Durga
Is there anyway to recover?
On Thu, Dec 6, 2012 at 10:23 PM, Richard Hipp wrote:
> On Thu, Dec 6, 2012 at 11:52 AM, Durga D wrote:
>
> > Hi,
> >
> > Is it possible to corrupt a single table among 10 tables in a database?
> >
> > Is it possible to co
Hi,
Is it possible to corrupt a single table among 10 tables in a database?
Is it possible to corrupt some records among millions of records in a
table?
Best Regards,
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sqlite-users@sqlite.org
http://sqlite.org:8080/cgi-
gt; > exists or not, so I don't have to rely on constructing SQL statements.
> >
> > On Wed, Dec 5, 2012 at 9:57 AM, Hick Gunter wrote:
> >
> > > Why do you only want to see if the table is there?
> > >
> > > You can always do
> > >
> >
Hi all,
I just want to find whether table exists or not in a database.
Is it correct query?
select distinct tbl_name from sqlite_master where tbl_name = 'abc';
Is there any other better way to find whether table exists or not.
Thanks in advance.
Regards,
___
Thank you.
On Sun, Nov 18, 2012 at 8:18 PM, Yuriy Kaminskiy wrote:
> Durga D wrote:
> >What happens if sqlite3_close() called multiple times but
> > sqlite3_open_v2() called only once.
> >
> > Practically I dint see any malfunction/corruption here. I w
Hi All,
What happens if sqlite3_close() called multiple times but
sqlite3_open_v2() called only once.
Practically I dint see any malfunction/corruption here. I would like to
know the behavior of sqlite in this scenario.
Best Regards,
___
sqlite
this the sequence of sqlite statements:
--
sqlite3_open
sqlite3_key
sqlite3_prepare_v2
sqlite3_step
sqlite3_finalize
sqlite3_prepare_v2 --- //my application crashed here
On Wed, Nov 14, 2012 at 5:14 PM, Durga D wrote:
> sqlite_source
sqlite_source_id(): 2012-03-20 11:35:50
00bb9c9ce4f465e6ac321ced2a9d0062dc364669
I will send the sequence of sql stmts.
On Wed, Nov 14, 2012 at 4:51 PM, Richard Hipp wrote:
> On Wed, Nov 14, 2012 at 3:41 AM, Durga D wrote:
>
> > I got the below error:
> > -
> On 14 Nov 2012, at 7:35am, Durga D wrote:
>
> > I have 8 sqlite databases with TRUNCATE journal mode. I have added new
> > database with WAL journal mode. Now, 9 databases in my application. Will
> it
> > give any database corruption?
>
> You can mix differ
Hi All,
I have 8 sqlite databases with TRUNCATE journal mode. I have added new
database with WAL journal mode. Now, 9 databases in my application. Will it
give any database corruption?
Regards,
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http
Hi,
Can I create INDEX for the particular column when database journal mode
is WAL?
Any impact If I INDEXed database with some triggers?
Thanks in advance.
Best Regards,
On Thu, Sep 6, 2012 at 4:04 PM, Durga D wrote:
> Thank you Kees.
>
>
> On Thu, Sep 6, 2012 at 3:34 P
Thank you Kees.
On Thu, Sep 6, 2012 at 3:34 PM, Kees Nuyt wrote:
> On Thu, 6 Sep 2012 12:02:03 +0400, Durga D wrote:
>
> >Hi All,
> >
> >Somehow "original author" missed one INTETER column as searchable
> >field ( like unique or primary key) in the
Hi All,
Somehow "original author" missed one INTETER column as searchable
field ( like unique or primary key) in the table. When execute queries
based on this integer field in where clause/joins, huge performance hit.
So, I am planning to add INDEXING for this integer column.
Is there an
Hi All,
What is the procedure to open the sqlite3 database file in Linux
Terminal which is already created on Mac.
Thanks in advance.
Regards,
___
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ltiple clients are
called.
Am I right?
Regards,
On Mon, Jul 23, 2012 at 8:19 PM, Igor Tandetnik wrote:
> On 7/23/2012 10:30 AM, Durga D wrote:
>
>> Unless your threads do something else in parallel, you could just as well
>>>>
>>> do all SQLite work on a single threa
5:17 PM, Igor Tandetnik wrote:
> Durga D wrote:
> > I have used same gdbconn for all the threads. In my sample application,
> > it working perfectly in wal mode.
> >
> > Is it correct approach?
>
> Approach to what? You've never stated the problem you are
Hi all,
I developed sample application with below logic:
1. in main(), got the valide gdbconn (type sqlite3*) after sqlite3_open
and sqlite3_prepare_v2.
2. wal mode.
3. created 4 threads and passed gdbconn as a argument to threads.
4. Three are reader_threads. each reader threa
Hi Simon, what you suggest now? sigle object based or set of connections?
Thanks,
On Mon, Jul 16, 2012 at 6:11 PM, Simon Slavin wrote:
>
> On 16 Jul 2012, at 2:59pm, "Igor Tandetnik" wrote:
>
> > Durga D wrote:
> >> So, I can establish x connections
Hi Michael/Igor,
So, I can establish x connections in app initialize time in WAL mode.
Based on request (read or write), I can pick the connection and serve.
Allows only one write at a time.
Is it correct?
Thanks in advance.
Regards,
On Mon, Jul 16, 2012 at 4:43 PM, Igor Tandetnik
Got it. Thank you so much.
On Mon, Jul 16, 2012 at 3:24 PM, Simon Slavin wrote:
>
> On 16 Jul 2012, at 12:09pm, Durga D wrote:
>
> >scenario: while write request is in progress with 100K records
> > insertion, new request with reading of 1 records already exist
.
Regards,
On Mon, Jul 16, 2012 at 2:29 PM, Simon Slavin wrote:
>
> On 16 Jul 2012, at 7:50am, Durga D wrote:
>
> >I am developing readers (> 1) and writer(1) application for sqlite3
> db.
> >
> >I would like to maintain set of connections in application
Hi all,
I am developing readers (> 1) and writer(1) application for sqlite3 db.
I would like to maintain set of connections in application
initialization time. whenever read request comes, serve the request from
existing connection object like pool.
Here, my doubt is: if app. runs fo
Thank you(Pavel) for the prompt response.
Sqlite does auto commit for every 25k insertions. Do I need to change the
number from 25k to x ( for ex: 100)?
On Thu, Jun 21, 2012 at 7:54 AM, Pavel Ivanov wrote:
> On Wed, Jun 20, 2012 at 11:33 PM, Durga D wrote:
> > Hi All,
> >
&
Hi All,
I have to develop a sqlite application. Within the process, multiple
threads are trying to access in write/read mode. Will sqlite supports read
and write at a time?
scenario: 1. x number of records (x related data) are going to insert
in a transaction in ThreadA. still, not commi
Hi All,
I am developing sqlite3 based application. I want to create/maintain
sqlite3 database in encrypted. Others should not have rights to open this
database without key. Is there any sqlite3 api's to do this?
Thanks in advance.
Regards,
___
Here, a,b,d,e,f,u and v are variable length strings.
delimiter '/ ' is constant.
On Fri, Jan 13, 2012 at 12:22 PM, Durga D wrote:
> Hi All,
>
> I have a table like this:
>
> h t0info( h is primary key, t0info is unique)
> ---
>
> 1
Hi All,
I have a table like this:
h t0info( h is primary key, t0info is unique)
---
1/a/d/u
2/a/e/u
3/a/f/u
4/a/g/v
5/a/b/c/d/e/f
input is : /a
output should be: d, e f, g and b
I am doing this way: select t0info from t0 where t0info like '/a%';
proce
Fixed it.
It allows duplicates when stmt reset(sqlite3_reset) missed after
sqlite3_step(..) in transaction.
Thank you.
On Thu, Jan 12, 2012 at 4:27 PM, Simon Slavin wrote:
>
> On 12 Jan 2012, at 10:52am, Durga D wrote:
>
> > I have attached sample db. I tried to sim
.
Thanks in advance,
Durga.
On Thu, Jan 12, 2012 at 3:57 PM, Simon Slavin wrote:
>
> On 12 Jan 2012, at 10:14am, Durga D wrote:
>
> > create table if not exists t0 (
> > h integer primary key autoincrement,
> > t0info text, unique(t0info));
> >
>
, Simon Slavin wrote:
>
> On 12 Jan 2012, at 6:05am, Durga D wrote:
>
> >Insertion time, I am able to get the rowid from
> > sqlite3_last_insert_rowid();
> >
> > It's working fine.
> >
> > Now, t0info record already exists, that t
Corrected it. Thank you.
insert into t1( hh, t1info) values ((select h from t0 where t0info = ?), ?)
On Thu, Jan 12, 2012 at 11:35 AM, Durga D wrote:
> Dear Igor,
>
> Insertion time, I am able to get the rowid from
> sqlite3_last_insert_rowid();
>
>
QLITE_OK ) return 0;
Thanks in advance,
Durga.
On Thu, Jan 12, 2012 at 11:03 AM, Igor Tandetnik wrote:
> Durga D wrote:
> > Dear Igor,
> >
> >If already toinfo record exists, that time how to get the h
> > (primary key) (instead of rowid)?
>
> An INTEGER PR
Dear Igor,
If already toinfo record exists, that time how to get the h
(primary key) (instead of rowid)?
Any shortcut for this?
Thanks in advance,
Durga.
On Wed, Jan 11, 2012 at 7:19 PM, Durga D wrote:
> Thanks alot !!!
>
> Have a good day. Let me try.
>
>
&
Thanks alot !!!
Have a good day. Let me try.
On Wed, Jan 11, 2012 at 7:15 PM, Igor Tandetnik wrote:
> Durga D wrote:
> > so, first I need to insert in t0 table, then query for value from t0,
> then
> > update t1 with this value. Needs to avoid reading from t0 table.
>
from t0 table.
Is there any alternative way to insert?
Thanks in advance.
On Wed, Jan 11, 2012 at 6:41 PM, Igor Tandetnik wrote:
> Durga D wrote:
> > create table if not exists t0 ( h integer primary key autoincrement,
> t0info
> > text);
> > create table if not exist
Simon/Jr
Please find the attached main.c files.
Thanks,
Durga
On Wed, Jan 11, 2012 at 12:58 PM, Simon Slavin wrote:
>
> On 11 Jan 2012, at 6:05am, Durga D wrote:
>
> > But, sqlite3_step(stmtoft1); is failing always. What might be the wrong
> > with this approach
01/12 06:29, Durga D wrote:
>
>> Deleted sqlite data base before executing first approach.
>> Again deleted sqlite database before executing second approach.
>>
>
> ok, misread this and thought 'first approach' relevant.
>
>
>
>> Issue is related
:05, Durga D wrote:
>
> if I understand correctly: first you created tables t1 and t2, then you
> say 'create if not exist' -- but they already do. instead of (re-)creating
> tables t1 and t2, ALTER TABLE statements can be used to mo
First approach:
I have created database with below schema:
create table if not exists t1 ( i integer primary key autoincrement, t1info
text);
create table if not exists t2 (ii integer primary key, t2info text, foreign
key (ii) references t1 (i) );
I created two prepared statement for t1 and t2.
be the reason?
On Tue, Jan 10, 2012 at 2:36 PM, Simon Slavin wrote:
>
> On 10 Jan 2012, at 8:37am, Durga D wrote:
>
> > I noticed, with first approach, huge performance hit when database grows.
> > for ex: database has 500,000 records. now insert 25,000 within a
> >
an 2012, at 7:23am, Durga D wrote:
>
> > create table if not exists emp(id integer primary key autoincrement,
> > col1 text, col2 text, unique (col1, col2));
> >
> > here, col1 and col2 should be unique. I tried to insert 1000 records
> > with unique(col1, col
Hi all,
I have emp sqlite table:
create table if not exists emp(id integer primary key autoincrement,
col1 text, col2 text, unique (col1, col2));
here, col1 and col2 should be unique. I tried to insert 1000 records
with unique(col1, col2). It's very slow. So, I choosed id as primary k
Petite,
Thank you for your material.
I will go through it.
Thanks,
Durga.
On Tue, Jan 3, 2012 at 1:02 AM, Petite Abeille wrote:
>
> On Jan 2, 2012, at 5:25 PM, Jay A. Kreibich wrote:
>
> > Oracle has some syntax short-cuts to deal with this, but they're
> non-standard.
>
> Recursive 'wi
, 2012 at 12:31 PM, Simon Slavin wrote:
>
> On 2 Jan 2012, at 5:25am, Durga D wrote:
>
> > "create table if not exists durtree (id integer primary key
> autoincrement,
> > c1 varchar[260], c2 varchar[260], c3 varchar[260], c4 varchar[260], c5
> > varchar[2
, Jan 2, 2012 at 9:55 PM, Jay A. Kreibich wrote:
> On Mon, Jan 02, 2012 at 07:01:29AM +, Simon Slavin scratched on the
> wall:
> >
> > On 2 Jan 2012, at 5:25am, Durga D wrote:
> >
> > > "create table if not exists durtree (id integer primary key
> auto
ve
>
> You also can use selection too (where condition).
> http://en.wikibooks.org/wiki/XQuery/XPath_examples
> http://sedna.org
>
> SQLite with fts is my favorite, but for tree like data structure I
> will use xml database.
>
> -aris
>
> On 12/28/11, Durga D wrote:
&
g to store tree in a sqlite3 db depth of 70. I need
high performance when accessing any level of the tree.
Thanks in advance,
Durga.
On Fri, Dec 30, 2011 at 11:17 PM, Simon Slavin wrote:
>
> On 30 Dec 2011, at 4:40pm, Jay A. Kreibich wrote:
>
> > On Fri, Dec 30, 2011 at
Hi all,
I have sqlite table with 71 columns. not null for 70 and one is
surrogate key(primary key). Sqlite3 3.7.9 doesn't support not null for 70
columns and unique(70 columns). It's worked fine upto 30 columns not null
and unique(70 columns).
I need 70 columns with unique and not null. How
ou want.
>
>
>
> Michael D. Black
>
> Senior Scientist
>
> Advanced Analytics Directorate
>
> Advanced GEOINT Solutions Operating Unit
>
> Northrop Grumman Information Systems
>
>
> From: sqlite-users-boun...@sqlite.org [sqlite-use
Mohit,
sqlite> .separator /
sqlite> create virtual table virfts4 using fts4 (residence);
sqlite> insert into virfts4 select * from source
sqlite> select count(*) from virfts4 where residence match '/*'; --
result is 0.
Please correct it. I think, i am doing somet
ec 27, 2011 at 3:38 PM, Kit wrote:
> 2011/12/27 Durga D :
> > select * from virfts4 where residence match '/*'; -- dint work
> > how to get counties names from this db by using query?
>
> Normalize database to 1NF, e.g.
> CREATE VIRTUAL TABLE virfts4 using fts4(cou
x27;/c*'; -- it's worked and very
fast.
Thanks in advance.
On Tue, Dec 27, 2011 at 2:01 PM, Kit wrote:
> 2011/12/27 Durga D :
> > HI all,
> > I have sqlite database with more than 1000 records. Here,
> > residencearea is the primary key.
> > /count
HI all,
I have sqlite database with more than 1000 records. Here,
residencearea is the primary key.
for ex:
/country/state/city/village
/country/city
/country/state/city
/country/
country: USA, UK, CHINA
Here I want to search based on country and sometimes
journal file is creating between transactions.
On Tue, Oct 12, 2010 at 3:00 PM, Oliver Peters wrote:
> Durga D writes:
>
> [...]
>
> > But performance issue is there.
> >
> > Is there anyway to optimize this?
> >
>
>
> maybe you should tr
ue, Oct 12, 2010 at 3:00 PM, Oliver Peters wrote:
> Durga D writes:
>
> [...]
>
> > But performance issue is there.
> >
> > Is there anyway to optimize this?
> >
>
>
> maybe you should try
>
> PRAGMA journal_mode = OFF;
>
>
> Oliver
>
Hi All,
I have created a sqlite database with "create table EMP (F1 INTEGER ,F2
TEXT(1120) primary key collate nocase,F3 INTEGER ,LMD TEXT(1120) ,F4
TEXT(1120) ,F5 TEXT(1120));".
Here F2(Field2) is primary key. I used transaction queries for every
25,000 records. But performance issue is t
Try to launch your appliztion with "Run As Administrator"(right click on exe
-> Run As..).
Note: Take care about fields information for old DB and new DB while opening
tables(backward compatibility). For ex: old DB might have x number of fields
and new DB might have y number fields where x is not e
Hi All,
I am developing an application with Sqlite3 Database in VC++ 6.0. Here,
I tried for bulk insertions with CppSQLite3Statement. But, It's allowing
duplicate records in my database even primary key existed.
First, I inserted 5 records with insert query and transactions for
every 2
Hi All,
I am developing an application with Sqlite3 Database in VC++ 6.0. Here,
I tried for bulk insertions with CppSQLite3Statement. But, It's allowing
duplicate records in my database even primary key existed.
First, I inserted 5 records with insert query and transactions for
every 2
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