Hi,
I would like to know how to store images inside a SQLite database
using the SQLite command line program.
consider the following example:
create table img_tbl (
img_id int primary key,
img blob);
In the above case how do I use the SQL insert statement to store
images into the img
1.)How does sqlite3's select work?
Does it need to seach for all the records?
2.)Is there any relation between errno and the sqlite3's result code?
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Hello,
I'm using sqlite3.dll and Delphi 7. In certain cirumstances a string seems
to be converted to a number. To test I use SQLiteSpy from Ralf Junker wich
is a nice tool.
When I do this:
insert into Queue (NetworkID) values (200907130833123740007)
Then the result of the field NetworkID is:
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Hi,
It seems that if I create the table as a field type 'char' instead of
'string' then the issue is solved. But I thought the field type was of non
importance?
rgds, Wilfried
2009/7/13 Wilfried Mestdagh wmestd...@gmail.com
Hello,
I'm using sqlite3.dll and Delphi 7. In certain cirumstances
On Jul 13, 2009, at 3:38 PM, Wilfried Mestdagh wrote:
Hi,
It seems that if I create the table as a field type 'char' instead of
'string' then the issue is solved. But I thought the field type was
of non
importance?
Details here:
http://www.sqlite.org/datatype3.html#affinity
My problem is get a database is locked error using lastest linux kernel
(above 2.6.28) , while the code can run smoothly on linux 2.6.26.2
kernel(vmware pc686 host) and on 2.6.26.3 kernel(arm9 embed system).
The problem code is:
#if 1
if (sqlite3_exec(gJcDb, PRAGMA cache_size = 4000, NULL,
create table words (_id integer primary key autoincrement, wordtext text not
null unique, timestamp integer not null);
public class Word
{
long _id;
String wordtext;
long timestamp;
}
timestamp:
before save: 1247435151517
after save : 1247435160847
Why is it doing this?
On Sun, Jul 12, 2009 at 11:00 PM, tetragon tetragontetrago...@yahoo.com wrote:
create table words (_id integer primary key autoincrement, wordtext text not
null unique, timestamp integer not null);
public class Word
{
long _id;
String wordtext;
long timestamp;
}
timestamp:
liubin liu wrote:
1.)How does sqlite3's select work?
It works well. What specifically do you want to now?
Does it need to seach for all the records?
Sometimes. Other times, it could use indexes to reduce the number of
records a statement needs to look at. See:
chandan wrote:
I would like to know how to store images inside a SQLite database
using the SQLite command line program.
You can't, really. You'd have to write your own application to handle
such BLOBs.
consider the following example:
create table img_tbl (
img_id int primary key,
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Hi Dan,
Thank you for your reply. I read:
Under circumstances described below, the database engine may convert
values between numeric storage classes (INTEGER and REAL) and
TEXT during query execution
But the circumstances are not really described (possible I cannot read
between the lines as
Wilfried Mestdagh wrote:
Hi Dan,
Thank you for your reply. I read:
Under circumstances described below, the database engine may convert
values between numeric storage classes (INTEGER and REAL) and
TEXT during query execution
But the circumstances are not really described
On 13 Jul 2009, at 4:35pm, Wilfried Mestdagh wrote:
But the circumstances are not really described (possible I cannot read
between the lines as my English is not perfect). So as far as I
understand
the page if I want to store / retrieve a string (which can be a
numeric
string) I have
Anyone here on the list have experience with either app?
Thanks,
Monte
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Bruce Robertson wrote:
We use a system of updating an Sqlite database buit use port 80 to send
data in XML format.
Is there a reason you have access to the email port and not the HTTP
port 80? It is very complex to identify a missing email but using port
80 and HTTP the process is almost
On Sun, 12 Jul 2009 18:03:14 -0700, Jim Showalter
j...@jimandlisa.com wrote:
Schema:
create table words (_id integer primary key autoincrement, wordtext
text not null unique);
create table definitions (_id integer primary key autoincrement,
owningWordId integer not null unique, deftext text
Hi,
if I attach a database to itself the trigger in the second db seem not
to work as expected (as I wrongly expected? .-): Does anyone no why and
how I could work around this?
sqlite3 adb
.headers on
create table a (
pk integer primary key );
create table b (
pk integer
Hi,
Sorry for my lack of SQL knowledge which triggered this help request:
Given a column containing numbers, which is the most efficient manner to find
out the highest smaller and lowest greater number?
That is, is there a better way than:
select * from table where number = ? order by number
Select max(number), min(number) from table;
Wes
On Mon, Jul 13, 2009 at 7:16 PM, Bogdan Niculabogda...@hotmail.com wrote:
Hi,
Sorry for my lack of SQL knowledge which triggered this help request:
Given a column containing numbers, which is the most efficient manner to find
out the
Sorry, I misread the question...
Still, I think min/max are better than order by limit 1.
Wes
On Mon, Jul 13, 2009 at 7:24 PM, Wes Freemanfreeman@gmail.com wrote:
Select max(number), min(number) from table;
Wes
On Mon, Jul 13, 2009 at 7:16 PM, Bogdan Niculabogda...@hotmail.com wrote:
Thank you for your answer.
Looking back to my original email, I believe I didn't explain well enough: I
want to find the highest smaller and lowest greater numbers enclosing the
number.
For example, given the sequence: 1, 3, 5, 7, 9, etc., if I query for 6, I would
like to get 5 and 7.
Yeah, sorry about that. In two statements:
select max(number) from table where number ?
select min(number) from table where number ?
if you want to merge them into a single statement, you can do:
select (select max(number) from table where number ?)
highest_smaller, (select min(number) from
On 14/07/2009 3:04 AM, Simon Slavin wrote:
On 13 Jul 2009, at 4:35pm, Wilfried Mestdagh wrote:
But the circumstances are not really described (possible I cannot read
between the lines as my English is not perfect). So as far as I
understand
the page if I want to store / retrieve a string
On 14 Jul 2009, at 12:49am, John Machin wrote:
On 14/07/2009 3:04 AM, Simon Slavin wrote:
The reference you were pointed to explains what happens:
http://www.sqlite.org/datatype3.html#affinity
So you want 'TEXT' ... 'char' doesn't mean anything to SQLite.
@Simon: I'm not sure what you
On 14 Jul 2009, at 12:16am, Bogdan Nicula wrote:
Given a column containing numbers, which is the most efficient
manner to find out the highest smaller and lowest greater number?
That is, is there a better way than:
select * from table where number = ? order by number desc limit 1;
select
Thank you, seems like a good solution.
Best regards,Bogdan
From: freeman@gmail.com
Date: Mon, 13 Jul 2009 19:40:48 -0400
To: sqlite-users@sqlite.org
Subject: Re: [sqlite] range enclosing a number
Yeah, sorry about that. In two statements:
select max(number) from table where number
On Mon, Jul 13, 2009 at 07:40:48PM -0400, Wes Freeman scratched on the wall:
Yeah, sorry about that. In two statements:
select max(number) from table where number ?
select min(number) from table where number ?
I'm pretty sure you don't want to do it this way. What this does is
gather
Jay, you're pretty much mistaken:
I'm pretty sure you don't want to do it this way. What this does is
gather every row that meets the WHERE condition and then runs a max()
or min() aggregation function across all of those rows. That means
that even if the column number has an index on
On 14/07/2009 11:44 AM, Jay A. Kreibich wrote:
On Mon, Jul 13, 2009 at 07:40:48PM -0400, Wes Freeman scratched on the wall:
Yeah, sorry about that. In two statements:
select max(number) from table where number ?
select min(number) from table where number ?
I'm pretty sure you don't
On Mon, Jul 13, 2009 at 10:33:00PM -0400, Pavel Ivanov scratched on the wall:
Jay, you're pretty much mistaken:
I'm pretty sure you don't want to do it this way. What this does is
gather every row that meets the WHERE condition and then runs a max()
or min() aggregation function
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