Simon Slavin wrote:
> On 7 Apr 2017, at 6:58am, Clemens Ladisch wrote:
>> David Raymond:
>>> https://docs.python.org/2/reference/datamodel.html#with-statement-context-managers
>>>
>>> For the sqlite3 module connection object: on a bad exit from an
>>> exception it will do a rollback, on a clean ex
On 7 Apr 2017, at 6:58am, Clemens Ladisch wrote:
> David Raymond:
>> https://docs.python.org/2/reference/datamodel.html#with-statement-context-managers
>>
>> For the sqlite3 module connection object: on a bad exit from an
>> exception it will do a rollback, on a clean exit it will do a commit,
David Raymond:
>https://docs.python.org/2/reference/datamodel.html#with-statement-context-managers
>
>For the sqlite3 module connection object: on a bad exit from an
>exception it will do a rollback, on a clean exit it will do a commit,
>and run .close() either way.
It does not run .close().
Reg
notice it until I run a
query and see "Error: no such table: feb.theTableYouWereLookingFor"
-Original Message-
From: sqlite-users [mailto:sqlite-users-boun...@mailinglists.sqlite.org] On
Behalf Of Random Coder
Sent: Thursday, April 06, 2017 6:07 PM
To: SQLite mailing list
Subj
On 6 Apr 2017, at 11:55pm, David Raymond wrote:
> For the sqlite3 module connection object: on a bad exit from an exception it
> will do a rollback, on a clean exit it will do a commit, and run .close()
> either way.
Thanks for the answer about open() scope. Your addition is interesting.
S
ps://docs.python.org/2/library/sqlite3.html#using-the-connection-as-a-context-manager
-Original Message-
From: sqlite-users [mailto:sqlite-users-boun...@mailinglists.sqlite.org] On
Behalf Of Simon Slavin
Sent: Thursday, April 06, 2017 5:27 PM
To: SQLite mailing list
Subject: Re: [sqlite] Test
On April 6, 2017 11:26:11 AM EDT, "James K. Lowden"
wrote:
>On Thu, 6 Apr 2017 13:19:38 +0100
>Simon Slavin wrote:
>
>> Instead use PHP functions to check that the file exists using PHP
>> function "file_exists()" and then using fread() to read the first 16
>> bytes from it. Those 16 bytes shou
On Thu, Apr 6, 2017 at 2:07 PM, David Raymond wrote:
> Before opening the connection you could do something along the lines of
>
> if not os.path.isfile(fi) or not os.access(fi, os.W_OK):
> print "File isn't there or isn't writable"
> return 1
> with open(fi, "r") as f:
> if f.read(16)
On 6 Apr 2017, at 10:07pm, David Raymond wrote:
> with open(fi, "r") as f:
In Python, once you fall outside the scope of "with open()" does it
automatically close the file for you ? If so, that’s pretty neat.
Simon.
___
sqlite-users mailing list
sq
On 06 Apr 2017 at 19:54, Jens Alfke wrote:
> PS: Tim, for some reason your mail client (iLetter) is sending replies without
> an In-Reply-To header, which breaks up the threading (at least in my mail
> client) making it very hard to follow. There’s probably not a way for you to
> change that, bu
quot;:
print "Magic header isn't correct"
return 1
-Original Message-
From: sqlite-users [mailto:sqlite-users-boun...@mailinglists.sqlite.org] On
Behalf Of dave boland
Sent: Thursday, April 06, 2017 3:58 PM
To: Simon Slavin; SQLite mailing list
Subject: Re:
I assume this will work in a similar fashion for Python?
On Thu, Apr 6, 2017, at 03:24 PM, Simon Slavin wrote:
>
> On 6 Apr 2017, at 7:38pm, dave boland wrote:
>
> > "unconfigured means no tables, no fields, no nothing. With SQLite, it
> > is possible to have an empty file, a database with a t
On 6 Apr 2017, at 7:38pm, dave boland wrote:
> "unconfigured means no tables, no fields, no nothing. With SQLite, it
> is possible to have an empty file, a database with a table but no
> fields, etc. The reason this concerns me is that I want to know what I
> have before connecting to a file a
> On Apr 6, 2017, at 5:19 AM, Simon Slavin wrote:
>
> Don’t do this. Because if the file isn’t there, or if the file is there but
> has zero length, SQLite will turn it into a SQLite file and then return
> results which don’t let you tell whether the file was already there or just
> created.
"unconfigured means no tables, no fields, no nothing. With SQLite, it
is possible to have an empty file, a database with a table but no
fields, etc. The reason this concerns me is that I want to know what I
have before connecting to a file and creating a new database when I did
not intend to do t
On 06 Apr 2017 at 16:10, Simon Slavin wrote:
> On 6 Apr 2017, at 4:04pm, Tim Streater wrote:
>
>> On 06 Apr 2017 at 15:33, Simon Slavin wrote:
>>
>>> After touching, try opening the file and issuing a CREATE TABLE command.
>>> See whether it works or gives an error.
>>
>> The command works a
On Thu, 6 Apr 2017 13:19:38 +0100
Simon Slavin wrote:
> Instead use PHP functions to check that the file exists using PHP
> function "file_exists()" and then using fread() to read the first 16
> bytes from it. Those 16 bytes should be "SQLite format 3" followed
> by a 0x00 byte for a string term
On 6 Apr 2017, at 4:04pm, Tim Streater wrote:
> On 06 Apr 2017 at 15:33, Simon Slavin wrote:
>
>> After touching, try opening the file and issuing a CREATE TABLE command. See
>> whether it works or gives an error.
>
> The command works and the file goes from 0 to 8k bytes.
Right. So you c
On 06 Apr 2017 at 15:33, Simon Slavin wrote:
> On 6 Apr 2017, at 2:44pm, Tim Streater wrote:
>
>> That would appear not to be the case. Under OS X 10.9.5, I touched a
>> non-existent file and then using sqlite3.app did:
>>
>> .schema<--- gave nothing
>> select version fr
On 6 Apr 2017, at 2:44pm, Tim Streater wrote:
> That would appear not to be the case. Under OS X 10.9.5, I touched a
> non-existent file and then using sqlite3.app did:
>
> .schema<--- gave nothing
> select version from globals; <--- gave "Error: no such table"
>
> M
On 06 Apr 2017 at 13:19, Simon Slavin wrote:
> On 6 Apr 2017, at 12:11pm, Tim Streater wrote:
>
>> When my app starts, I check that the file in question actually *is* a
>> database by doing some simple steps like open, selects from important tables,
>> and a read/write to a globals table in the
On 6 Apr 2017, at 12:11pm, Tim Streater wrote:
> When my app starts, I check that the file in question actually *is* a
> database by doing some simple steps like open, selects from important tables,
> and a read/write to a globals table in the database that contains, for
> instance, the versi
Seems like a good reason to introduce a way to query the existence of a
particular pragma command, something like:
PRAGMA exists('user_version');
or
PRAGMA exists='user_version';
--
Marco Bambini
http://www.sqlabs.com
http://twitter.com/sqlabs
http://instagram.com/sqlabs
> On 6 Apr 2017, at 13:4
On Thu, 06 Apr 2017 12:11 +0100, Tim Streater wrote:
>
> I keep reading that the continued
> existence of any particular PRAGMA is completely un-guaranteed.
>
We say that. But in practice, if we were to remove a pragma it would
break thousands, perhaps millions, of applications, so they are all
On 06 Apr 2017 at 11:28, Clemens Ladisch wrote:
> dave boland wrote:
>> Being a little paranoid, I like to insure that the db file exists
>
> SQLite automatically creates an empty DB if you try to open
> a nonexistent file, so you do not actually need to do anything.
>
>> and what state it is in
dave boland wrote:
> Being a little paranoid, I like to insure that the db file exists
SQLite automatically creates an empty DB if you try to open
a nonexistent file, so you do not actually need to do anything.
> and what state it is in (unconfigured, so needs to be made
> ready; or ready to acce
Excellent!
Thanks dude!
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Pavel Ivanov
Sent: Thursday, October 20, 2011 11:06 AM
To: General Discussion of SQLite Database
Subject: Re: [sqlite] Testing SQLite in C++
Do not
Do not include sqlite3ext.h. Applications need only sqlite3.h.
Pavel
On Thu, Oct 20, 2011 at 11:02 AM, Arbol One wrote:
> Hey kids, I am testing SQLite in the hope that I can use it in my program,
> but I get this confusing error msg, Can anybody help?
>
>
>
> Error message
>
>
>
>
On Jan 12, 2009, at 10:53 AM, John Efstathiades wrote:
> Hello,
>
> I am looking into porting the latest SQLite to an embedded platform
> running
> a commercial real-time operating system. I'd like to use as much of
> the
> existing regression test code as possible to ensure the port is
> c
John Efstathiades schrieb:
> Hello,
>
> I am looking into porting the latest SQLite to an embedded platform running
> a commercial real-time operating system. I'd like to use as much of the
> existing regression test code as possible to ensure the port is correct but
> unfortunately the target env
If you have TCL installed, you can build the 'testfixture' which is used to
run the tests.
;# Unpack the source tree into "sqlite"
mkdir sqlite
cd sqlite
tar xzf sqlite.tar.gz
;# Build will occur in a sibling directory
cd ..
mkdir bld
;# Change to the build directory
cd bld
;# Run the configure
ead of
using the pre-processed source?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: 13 December 2007 10:14
To: sqlite-users@sqlite.org
Subject: Re: [sqlite] Testing SQLite
"Brown, Daniel" <[EMAIL PROTECTED]> wrote:
> Morning List,
>
> I
"Brown, Daniel" <[EMAIL PROTECTED]> wrote:
> Morning List,
>
> I've just started experimenting with SQLite to see if I can replace our
> current custom embedded database solution with it and trying to port
> SQLite to some of our embedded platforms. Are there are any testing
> frameworks (unit tes
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