Agrawal, Manish wrote:
>
> 1. Database connection not valid for getting number of changes
> At System.Data.SQLite.SQLiteConnection.get_Changes()
>
> 2. Database connection not valid for getting last insert rowid
> At System.Data.SQLite.SQLiteConnection.get_LastInsertRowId()
>
> 3. Da
[YAN HONG YE]
> my sqlite database want to export to html file, I know the command
> sqlite3 -html film.db "select * from film;"
> could show the table in cmd window, but how to export to the html file like
> sqlite3 -html film.db mm.html "select * from film;"
sqlite3 -html film.db "select *
my sqlite database want to export to html file, I know the command
sqlite3 -html film.db "select * from film;"
could show the table in cmd window, but how to export to the html file like
sqlite3 -html film.db mm.html "select * from film;"
Thank you!
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On 25/03/12 08:44, Jay A. Kreibich wrote:
> No, there wasn't. I'm saying the OS shouldn't cache blocks from
> filesystems that reside on a ramdisk volume.
We were talking at cross purposes. I was talking about the OPs issue and
moving a database fr
On 25 Mar 2012, at 8:44pm, Neo Anderson wrote:
> It's just that the two resultsets are not related. What I thought was that I
> could gain some performance by combining two SELECT into one statement and
> execute it via one prepare/step.
Ah. Now we understand. No, you can't. Almost all the
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On 25/03/12 11:28, Larry Brasfield wrote:
> Please forgive a bit of skepticism here. Do you mean that the
> amalgamation of sqlite3.c into apsw.c provides a 10% speed advantage?
Yes. Effectively the point of APSW is to provide a Pythonic API, extrac
On Mar 25, Neo Anderson wrote:
Do not be confused by the sample SQL statement. What I really wanted to do is
return two different resultsets in one statement and wanted an API to handle
the two resultsets. For example:
select * form table1;
select * from table2;
And I do not want to use big u
On Sun, Mar 25, 2012 at 1:48 PM, Tal Tabakman wrote:
> Hi,
> I am writing an application that performs a lot of DB writes. I am using a
> lot of recommended optimizations (like using transactions and more...)
> I want to improve my recording time by reducing the amount of I/O. one way
> to do so i
It's just that the two resultsets are not related. What I thought was that I
could gain some performance by combining two SELECT into one statement and
execute it via one prepare/step.
> From: petite.abei...@gmail.com
> Date: Sun, 25 Mar 2012 21:40:40 +0200
> To: sqlite-users@sqlite.org
> Subje
On Mar 25, 2012, at 9:36 PM, Neo Anderson wrote:
> And I do not want to use big union.
Out of curiosity, why is that? SQLite goes to great length to support
relational operations. Why not use them?
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sqlite-users@sqlite.o
Do not be confused by the sample SQL statement. What I really wanted to do is
return two different resultsets in one statement and wanted an API to handle
the two resultsets. For example:
select * form table1;
select * from table2;
And I do not want to use big union.
By reading other replies
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On 25/03/12 10:48, Tal Tabakman wrote:
> I am evaluating a sqlite extension called zipvfs.
http://www.hwaci.com/sw/sqlite/zipvfs.html for anyone else interested.
> I assumed that database writing will be faster ... in reality I see no
> difference
On Sun, Mar 25, 2012 at 02:03:44PM -0400, Francis J. Monari, Esquire scratched
on the wall:
> All,
>
> Not to sound critical, but to be clear: using SQLite for IEEE
> floating point will result in data "loss' unless precautions are
> taken.
Define "loss". SQLite, in general, is dependent on t
On Sun, Mar 25, 2012 at 07:48:51PM +0200, Tal Tabakman wrote:
> Hi,
> I am writing an application that performs a lot of DB writes. I am using a
> lot of recommended optimizations (like using transactions and more...)
> I want to improve my recording time by reducing the amount of I/O. one way
> to
On March 25, Tal Tabakman wrote:
Hi,
I am writing an application that performs a lot of DB writes. I am using a
lot of recommended optimizations (like using transactions and more...)
I want to improve my recording time by reducing the amount of I/O. one way
to do so is by compressing the data bef
On March 24, Roger Binns wrote:
[I am the author of APSW]
Thanks for that, BTW.
On 24/03/12 14:22, Larry Brasfield wrote:
> Except for its clever hiding of SQLite's C API names (via "#define
> SQLITE_API static"),
There is nothing "clever" about it - SQLite exposes various things like
that
All,
Not to sound critical, but to be clear: using SQLite for IEEE floating
point will result in data "loss' unless precautions are taken.
Assuming my statement above is correct, then does a standard set of
precautions exist?
Frank.
Francis J. Monari, Esquire
McKernan, McKernan & Godino
1
Hi,
I am writing an application that performs a lot of DB writes. I am using a
lot of recommended optimizations (like using transactions and more...)
I want to improve my recording time by reducing the amount of I/O. one way
to do so is by compressing the data before dumping it to DISK.
I am evalua
On Sun, Mar 25, 2012 at 06:10:14PM +0800, Neo Anderson scratched on the wall:
>
> Is it possible to handle multiple results using sqlite3_step or any
> other API calls?
sqlite3_exec() is the only API call that will process multiple SQL
statements in a single call. Its use is somewhat discour
On Sun, Mar 25, 2012 at 09:29:58AM -0400, Francis J. Monari, Esquire scratched
on the wall:
> How are +infinity and -infinity handled?
Generally, they are treated like normal values. You can calculate,
store, and retrieve an INF or -INF value using just SQL expressions.
As with all cal
On Sat, Mar 24, 2012 at 09:53:47PM -0700, Roger Binns scratched on the wall:
> Yes, but the tools primarily come from the OS vendor. After all they have
> to be able to compile and debug the code making up the operating system
> and base applications.
Which makes it all the more disappointing
Debugging shows that the update statement generates the following 4 errors:
http://www.ismlab.usf.edu/sqlite_errors.jpg
1. Database connection not valid for getting number of changes
At System.Data.SQLite.SQLiteConnection.get_Changes()
2. Database connection not valid for getting last in
All,
How are +infinity and -infinity handled?
Frank.
Simon Slavin wrote:
On 25 Mar 2012, at 3:48am, "Jay A. Kreibich" wrote:
On Sat, Mar 24, 2012 at 07:32:32AM -0400, Richard Hipp scratched on the wall:
SQLite converts NaN inputs into NULL.
I think this is the right choice. It is w
Neo Anderson wrote:
> Is it possible to handle multiple results using sqlite3_step or any other API
> calls?
>
> I want to execute the following SQL in one statement and want to get the two
> resultsets.
>
> select 1 a; select 2 b;
No. In SQLite, each sqlite3_stmt* handle represents one resul
Hello
I am getting this error when trying to update a database row in a C#
application. The data set ds has been created using the standard Visual Studio/
System.Data.SQLite tools.
The table definition is:
CREATE TABLE "Test" (
"test_Id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL UN
On Sun, 25 Mar 2012 18:10:14 +0800, Neo Anderson
wrote:
>
> Is it possible to handle multiple results using sqlite3_step or any other API
> calls?
>
> I want to execute the following SQL in one statement and want to get the two
> resultsets.
>
> select 1 a; select 2 b;
(that doe not look like
Is it possible to handle multiple results using sqlite3_step or any other API
calls?
I want to execute the following SQL in one statement and want to get the two
resultsets.
select 1 a; select 2 b;
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sqlit
On 03/25/2012 02:07 PM, Neo Anderson wrote:
See the following result:
sqlite> select * from sqlite_master order by type;
type|name|tbl_name|rootpage|sql
index|sqlite_autoindex_t_1|t|4|
index|sqlite_autoindex_t3_1|t3|7|
table|t|t|2|CREATE TABLE t(id int primary key, key, value)
table|t2|t2|5|CR
See the following result:
sqlite> select * from sqlite_master order by type;
type|name|tbl_name|rootpage|sql
index|sqlite_autoindex_t_1|t|4|
index|sqlite_autoindex_t3_1|t3|7|
table|t|t|2|CREATE TABLE t(id int primary key, key, value)
table|t2|t2|5|CREATE TABLE t2(id INTEGER primary key, key, valu
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