I know that this list has been over the issues of using ROWID to get the
count. Nevertheless, I was thinking, if you never do any deletes the
last ROWID should contain the count. It's too bad you can't do an offset
of negative one so that it would start at the back. That should be darn
fast.
Brannon King
wrote:
Thanks, Igor, you've inspired and saved me yet again. The subqueries
you had used for the x/yEnd did not work, but the rest did and I have
that maxim information beforehand anyway. Here's how it shook down:
select
cast(cast((xStart+xEnd) as double)/2/15518.5 as integer)
Thanks, Igor, you've inspired and saved me yet again. The subqueries you had
used for the x/yEnd did not work, but the rest did and I have that maxim
information beforehand anyway. Here's how it shook down:
select
cast(cast((xStart+xEnd) as double)/2/15518.5 as integer) cellX,
Brannon King
wrote:
I'm wondering if the following query can be done as a single query
rather than running it in a (nested) loop.
Suppose a database with five columns; xStart, yStart, xEnd, yEnd,
score. I need the maximum score at the midpoint of the line quantized
to a 64x64 grid. Psuedo
I can see no difference in my time measurements in changing the "order by
desc limit 1" to "max".
> >I'm wondering if the following query can be done as a single query
> >rather than running it in a (nested) loop.
> >
> >Suppose a database with five columns; xStart, yStart, xEnd, yEnd,
>
I'm wondering if the following query can be done as a single query rather
than running it in a (nested) loop.
Suppose a database with five columns; xStart, yStart, xEnd, yEnd, score. I
need the maximum score at the midpoint of the line quantized to a 64x64
grid. Psuedo code:
query = prepare("
Thanks to Carl Clemens, I now have a working shell with a timer in it. I've
posted the shell.c on the contrib page along with a Windows exe compiled
using VC71. It is built on the latest shell.c version and should compile on
Linux as well, though I have not tested that. (My Linux box is down
[EMAIL PROTECTED] wrote:
It seems unlikely. It wasn't a system crash; actually, I just killed my
application process. Anything the app had written out to disk already, should
have still been there after the restart.
It's very disturbing -- I'm hearing that SQLite should automatically flush
[EMAIL PROTECTED] wrote:
>
> It's very disturbing -- I'm hearing that SQLite should automatically flush to
> disk, and that what I observed shouldn't be possible. I'm relying on it to
> keep my data safe (backups notwithstanding). Yet in practice, it really did
> roll back two days' worth of
On Jul 18, 2006, at 16:40 UTC, Nuno Lucas wrote:
> Any chance of being the OS file system that "rollbacked" the files
> after the crash?
It seems unlikely. It wasn't a system crash; actually, I just killed my
application process. Anything the app had written out to disk already, should
have
On 7/14/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
I've just lost a couple of days' worth of data when my app crashed. (Well, the
data wasn't a total loss thanks to backup plans, but the database itself
essentially reverted to its state of 2 days ago.) This is despite my app doing
a
On 7/18/06, Sripathi Raj <[EMAIL PROTECTED]> wrote:
Hi Jay,
I have a database whose size is around 250 MB. I have a table which has
around 140,000 records. Doing a count(*) on that takes me 473 seconds. I
believe it's not supposed to take that much time.
SQLite does not keep count of rows in
Never mind, it was a problem with the disk. On moving to a faster disk, the
time taken dropped to 8 seconds which I guess is still slow.
Raj
On 7/18/06, Sripathi Raj <[EMAIL PROTECTED]> wrote:
Hi Jay,
I have a database whose size is around 250 MB. I have a table which has
around 140,000
13 matches
Mail list logo
