Not that is critical for my application, but just for curiosity which
is the recommended idiom to figure out whether a table has any register?
-- fxn
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On Jul 24, 2006, at 11:47, Xavier Noria wrote:
I am trying to understand a crash I get very often. There are two
processes accessing to the same database in a Windows XP (through
Active Record) doing simple CRUDs on tables, and from any of the
two at random I get an SQLite3::BusyException
On Jul 24, 2006, at 14:49, [EMAIL PROTECTED] wrote:
Daniel van Ham Colchete <[EMAIL PROTECTED]> wrote:
I was trying to understand why would a sqlite3_prepare return
SQLITE_BUSY.
If SQLite does not already have the database schema loaded
into cache, it needs to read the schema out of the SQLI
On Jul 24, 2006, at 11:47, Xavier Noria wrote:
The processes use transactions,
Not necessarily.
Could it have to do with AR asking for metadata about the schema?
Just an idea.
I am trying to understand a crash I get very often. There are two
processes accessing to the same database in a Windows XP (through
Active Record) doing simple CRUDs on tables, and from any of the two
at random I get an SQLite3::BusyException, for example (copied by hand):
SQLite3::BusyEx
On Mar 11, 2006, at 7:58, Andrew Piskorski wrote:
On Fri, Mar 10, 2006 at 04:37:36PM -0800, Darren Duncan wrote:
3. There is no such thing as a NULL.
3.1 All logic is 2VL (true, false) not 3VL (true, false, unknown).
There is no such thing as null, really? So, when you do an outer join
b
On Feb 11, 2006, at 17:59, Clint Bailey wrote:
Hi,
Is there any know book in print for sqlite that is included in PHP5?
I just finished "SQLite"
http://www.bookpool.com/sm/067232685X
and has helped me a lot, then the deltas in the web site helps to
stay in sync with 3.x.
I saw in Ama
On Feb 10, 2006, at 16:51, malcom wrote:
Hello,
I have a sqlite column with a string. This string is composed by n
different lines separated by an \n character. Each line is composed by
: . So my final string is something like this:
: \n
: \n
:
Now I need to search *only* inside a particular
On Feb 10, 2006, at 13:01, James Biggs wrote:
I can do for example
$dbh->do( "CREATE TABLE my_table (etc etc etc)");
but i don't know a Perl command for creating a table with many
columns. I
did not find one in the docs either. Thanks
The idea is that you build the SQL string dynamically
On Feb 9, 2006, at 23:02, Marian Olteanu wrote:
I would say that the fastest way (CPU cycles and lines of code) to
delete all tables would be to delete the file in which the database
is stored.
Clever!
In the schema definition I would like to avoid the combo
delete if exists table_name;
create table_name ( ... );
Can I query sqlite_master about tables, indexes, etc. in a way that
allows the deletion of everything in one shot beforehand?
-- fxn
On Feb 8, 2006, at 17:24, [EMAIL PROTECTED] wrote:
If you do not do a BEGIN...COMMIT around your inserts,
then each insert has an implied BEGIN...COMMIT around itself.
That means you are doing 50 COMMITs.
A COMMIT is slow because it is "Durable" (The "D" in ACID).
That means that the operation
On Feb 8, 2006, at 17:10, Doug Nebeker wrote:
When you don't wrap everything in a transaction, each statement
becomes
it's own transaction. And the database file is opened, updated, and
closed on each transaction. So your first case had roughly 50
times the
amount of file I/O and transacti
I have a simple schema and a sql loader that fills a table with
initial values:
delete from foo;
insert into foo ...;
insert into foo ...;
... about 50 inserts ...
To my surprise, the execution of these inserts took a few seconds
(SQLite is 3.3.3). However, if I wrapped the entire lo
I have a couple questions regarding character encodings in SQLite 3:
* Do databases or tables have an associated character encoding? If
they do how is it configured?
* The description for the TEXT class mentions "using the database
encoding (UTF-8, UTF-16BE or UTF-16-LE)", is there support
I asked this in a couple of Rails places without luck. I guess this
is actually related to Rails, just ask it here in case someone knows
about it.
The file config/database.yml rails generates has as SQLite database
for testing ":memory:", but the simplest of the tests in the Agile
book do
Say you are doing some web development with SQLite in the backend.
You progressively fill the database with the very web interface you
are writing, throwing that data is not desirable in general. But at
the same time the schema evolves with the project, tables are added,
columns are renamed
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