Sent: Wednesday, October 23, 2019 2:09:19 PM
To: SQLite mailing list
Subject: Re: [sqlite] ALTER TABLE ADD COLUMN
Wednesday, October 23, 2019, 1:53:10 PM, x wrote:
> From the documentation
> “A record might have fewer values than the number of columns in the
> corresponding table. This ca
n to save space. I
think it's SQLITE_ENABLE_NULL_TRIM, which is disabled by default.
-Original Message-
From: sqlite-users On Behalf Of x
Sent: Wednesday, October 23, 2019 8:53 AM
To: sqlite-users@mailinglists.sqlite.org
Subject: [sqlite] ALTER TABLE ADD COLUMN
From the documentation
“A
On 23 Oct 2019, at 1:53pm, x wrote:
> Suppose you have a table with say 5 columns that are almost always the
> default value (probably zero or null). Does the above suggest you should make
> them the last 5 columns in the table as the last n columns that are the
> default value won’t take up s
Wednesday, October 23, 2019, 1:53:10 PM, x wrote:
> From the documentation
> A record might have fewer values than the number of columns in the
> corresponding table. This can happen, for example, after an ALTER TABLE ...
> ADD COLUMN SQL statement has increased the number of
> columns in the
From the documentation
“A record might have fewer values than the number of columns in the
corresponding table. This can happen, for example, after an ALTER TABLE ... ADD
COLUMN SQL statement has increased the number of columns in the table schema
without modifying preexisting rows in the table
Am 21.05.2015 um 13:44 schrieb Simon Slavin:
> On 21 May 2015, at 7:51am, Christoph P.U. Kukulies
> wrote:
>
>> Now I wonder why I don't read
>> CREATE TABLE [database] (
>> [database_name] TEXT NULL,
>> [table_name] TEXT NULL,
>> [data_type] TEXT NULL,
>> [data_size] INTEGER NULL,
>> [column
On Thu, 21 May 2015 12:45:41 +0200, "Christoph P.U. Kukulies"
wrote:
>Am 21.05.2015 um 10:00 schrieb Kees Nuyt:
>> On Thu, 21 May 2015 09:40:53 +0200, "Christoph P.U. Kukulies"
>> wrote:
>>
>>> Am 21.05.2015 um 09:25 schrieb Hick Gunter:
alter table [database] add column [real_length] numer
Am 21.05.2015 um 10:00 schrieb Kees Nuyt:
> On Thu, 21 May 2015 09:40:53 +0200, "Christoph P.U. Kukulies"
> wrote:
>
>> Am 21.05.2015 um 09:25 schrieb Hick Gunter:
>>> alter table [database] add column [real_length] numeric;
>> Thanks, that did it right. Almost. Still I'm wondering why
>> the outp
On 21 May 2015, at 7:51am, Christoph P.U. Kukulies wrote:
> Now I wonder why I don't read
> CREATE TABLE [database] (
> [database_name] TEXT NULL,
> [table_name] TEXT NULL,
> [data_type] TEXT NULL,
> [data_size] INTEGER NULL,
> [column_name] TEXT NULL,
> [vendor] TEXT DEFAULT 'SQLBASE' NULL
On Thu, 21 May 2015 09:40:53 +0200, "Christoph P.U. Kukulies"
wrote:
>Am 21.05.2015 um 09:25 schrieb Hick Gunter:
>> alter table [database] add column [real_length] numeric;
> Thanks, that did it right. Almost. Still I'm wondering why
> the output is
> not as "smooth" as the
> .fullschema listin
Am 21.05.2015 um 09:08 schrieb Jean-Christophe Deschamps:
> At 08:51 21/05/2015, you wrote:
>
>> I used sqlite3.exe by invoking it on the command line with the name
>> of a database.
>> Next I typed
>>
>> alter table database add column real_length numeric;
>>
>> Next I typed .fullschema
>> and I
Am 21.05.2015 um 09:25 schrieb Hick Gunter:
> alter table [database] add column [real_length] numeric;
Thanks, that did it right. Almost. Still I'm wondering why the output is
not as "smooth" as the
.fullschema listing before the ALTER ADD COLUMN: (comma at line start,
lower case 'numeric')
sqli
At 08:51 21/05/2015, you wrote:
>I used sqlite3.exe by invoking it on the command line with the name of
>a database.
>Next I typed
>
> alter table database add column real_length numeric;
>
>Next I typed .fullschema
>and I'm getting:
>
>sqlite> .fullschema
>CREATE TABLE [database] (
>[database_n
I used sqlite3.exe by invoking it on the command line with the name of a
database.
Next I typed
alter table database add column real_length numeric;
Next I typed .fullschema
and I'm getting:
sqlite> .fullschema
CREATE TABLE [database] (
[database_name] TEXT NULL,
[table_name] TEXT NULL,
[da
Try
alter table [database] add column [real_length] numeric;
-Urspr?ngliche Nachricht-
Von: Christoph P.U. Kukulies [mailto:kuku at kukulies.org]
Gesendet: Donnerstag, 21. Mai 2015 08:51
An: General Discussion of SQLite Database
Betreff: [sqlite] ALTER TABLE ADD COLUMN
I used sqlite3
On Tue, Dec 16, 2014 at 11:40:22PM +, Simon Slavin wrote:
> If 'ALTER TABLE ... ADD COLUMN ...' fails it fails harmlessly, with
But it doesn't fail so harmlessly:
$ sqlite3 db 'alter table toy add column foo text; select 5;' || echo fail
SQL Error: duplicate column name: foo
fail
$
Note tha
On 16 Dec 2014, at 10:40pm, Nico Williams wrote:
> I have a habit of putting schema definitions in a file that's always
> safe to read and execute against a DB connection. This means that I
> DROP some things IF EXISTS and CREATE all things IF NOT EXISTS.
>
> But if I have to ALTER TABLE... th
I have a habit of putting schema definitions in a file that's always
safe to read and execute against a DB connection. This means that I
DROP some things IF EXISTS and CREATE all things IF NOT EXISTS.
But if I have to ALTER TABLE... there's no IF NOT EXISTS .. equivalent
for ALTER TABLE.
Funny t
On 31 May 2011, at 5:09pm, Fabio Spadaro wrote:
> Step 1: alter table pippo rename to fabio -> ok
> step 2: insert into fabio (field1) values ('1 ') -> ko
> OperationalError: no such table main.pippo
How does step 2 know the name 'pippo' ? You don't seem to supply it in the
command.
Sim
On Tue, May 31, 2011 at 6:09 PM, Fabio Spadaro wrote:
> To recap:
> Step 1: alter table pippo rename to fabio -> ok
> step 2: insert into fabio (field1) values ('1 ') -> ko
> OperationalError: no such table main.pippo
> Step 3: alter table add column fabio field2 integer null -> ok
> result:
>
Hi
2011/5/31 Stephan Beal
> On Tue, May 31, 2011 at 5:11 PM, Fabio Spadaro >wrote:
>
> > "Alter table add column" command drop data from table.
> > Can you keep the data or should I store the data before the alter and
> then
> > put
> > them in the table?
> >
>
> http://www.sqlite.org/lang_alte
On Tue, May 31, 2011 at 5:11 PM, Fabio Spadaro wrote:
> "Alter table add column" command drop data from table.
> Can you keep the data or should I store the data before the alter and then
> put
> them in the table?
>
http://www.sqlite.org/lang_altertable.html
says:
"The execution time of the AL
On May 31, 2011, at 10:11 AM, Fabio Spadaro wrote:
> "Alter table add column" command drop data from table.
> Can you keep the data or should I store the data before the alter and then put
> them in the table?
ALTER TABLE ADD COLUMN does not drop data from the table.
"Alter table add column" command drop data from table.
Can you keep the data or should I store the data before the alter and then put
them in the table?
--
Fabio Spadaro
www.fabiospadaro.com
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On 6/3/07, Mark Gilbert <[EMAIL PROTECTED]> wrote:
Anyone have *any* idea what is happening ?
I don't know nothing about MacOS, but you may want to check the result
of sqlite3_close. It's possible it's not closing the database [1].
Regards,
~Nuno Lucas
[1] http://www.sqlite.org/capi3ref.html#
Folks.
I had been struggling to implement ALTER TABLE ADD COLUMN in my app
to change the database structure. However I would continuously face a
locked database error.
After much experimentation I have come to a very very strange conclusion.
In my app if I do this:
-start app
-open database
On Tue, 2005-03-29 at 03:13 -0800, Andy Lutomirski wrote:
> I can crash sqlite3 like this:
>
> % cat test.sql
> create table a (id INTEGER PRIMARY KEY);
> alter table a add column f1 TEXT;
> alter table a add column f2 TEXT;
> alter table a add column f3 TEXT;
> alter table a add column f4 TEXT;
>
I can crash sqlite3 like this:
% cat test.sql
create table a (id INTEGER PRIMARY KEY);
alter table a add column f1 TEXT;
alter table a add column f2 TEXT;
alter table a add column f3 TEXT;
alter table a add column f4 TEXT;
alter table a add column f5 TEXT;
alter table a add column f6 TEXT;
alter ta
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