Dear all,
> You can use a system call to execute a command like the following;
>
> sqlite3 -separator , test.db ".import test.csv sometable"
I do something very similar to this from a Perl application for speed.
It's about twice as fast as doing this from DBI. (Benchmarked on very
large files).
Dear Will,
> It might be nice if there were a sqlite3_check_syntax function in the
> API. Another possibility that uses a function in the public API is to
> call sqlite3_prepare on the statement(s).
Perhaps, but as I was working up to this - dry-running and dbx/gdb'ing
the code I wanted to
Dear all,
I have a "meta" application that's a bit like the sqlite shell (except
it's not interactive) in which people write statements that are parsed
by Perl that contain SQL statements that are passed *unparsed* by Perl
to SQLite via DBD::SQLite.
Some of the queries are long.
To save time,
Dear Kervin,
> What does the the 'where' command say?
(See the original start of the thread for the whole kaboodle), but
here's the offending select:
select
r.kp,
substr(r.kp,1,13) as records,
r.result2,
r.result4,
r.result12,
min(1,(r.arecords2/100)) as ap2,
Dear Richard,
> Patches to fix ticket #1346 are available at
> http://www.sqlite.org/cvstrac/chngview?cn=2573
> Please try adding these patches and see if they do not
> fix the problem in the multi-threaded application.
Some results. (and bear in mind that I'm not sure that
my particular core
Dear Patrick,
> Could you download 2.8.16 and let us know if your process works with
> that version? If so it may be the same issue and might raise the
> visibility. With the performance improvements I'd much rather be on
> the latest version.
Unfortunately it won't help. The application
Dear Christian,
> Doesn't matter how much memory you have. If ulimits restrict how much
> memory a process can have, something has to give. Try:
The process has unlimited ulimits.
Thanks for the suggestion, but other Perl scripts that run already use
huge amounts of memory on this machine, so
Dear all,
SQLite is wonderful. Thank you for this piece of software.
I have a problem however with large tables > 1M rows.
I am using the latest of everything:
SQLite 3.2.2
DBI 1.48
DBD::SQLite 1.09
AIX 4.3.3
Native C compiler.
The Perl is one rev behind at 5.8.6 but I get an identical
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