[EMAIL PROTECTED] wrote:
"Murray @ PlanetThoughtful" <[EMAIL PROTECTED]> writes:
I have a column defined with DEFAULT CURRENT_TIMESTAMP in an SQLite 3.2.7 db
(on WinXP SP2, if that's important). I've noticed that the value being
stored in that column is being recorded / displayed
"Murray @ PlanetThoughtful" <[EMAIL PROTECTED]> writes:
> I have a column defined with DEFAULT CURRENT_TIMESTAMP in an SQLite 3.2.7 db
> (on WinXP SP2, if that's important). I've noticed that the value being
> stored in that column is being recorded / displayed incorrectly. For
> example, it's
Refer http://www.sqlite.org/cvstrac/wiki?p=DateAndTimeFunctions.
'localtime' has to be allowed for.
Regards.
rayB
|-+>
| | "Murray @|
| | PlanetThoughtful"|
| |
Hello All,
New to the list, so please forgive if this has been discussed previously.
I have a column defined with DEFAULT CURRENT_TIMESTAMP in an SQLite
3.2.7 db (on WinXP SP2, if that's important). I've noticed that the
value being stored in that column is being recorded / displayed
Hello all,
I'm using sqlite3.2.7 and the tcl interface for my cash desk application
TkKasse. Now a user of TkKasse got this serious problem with his cash
register database.
The cash register data is stored in a sqlite3 database with standard settings,
which is now about 2MB in size. They
Hello:
We are going to implement p-threads in our embebbed OS and want to
know how SQLite uses them. Each database will have its own thread or
each part of SQLite (tokenizer, parser, btree...) have its own thread
or a mixture of both?
TIA
> Donald Griggs and Jay Sprenkle have suggested transactions, which I had not
> been using, and I've wrapped the all 800,000 iterations into one tran and
> that has reduced the time down to 6 minutes - thanks Donald and Jay!!
> Problem fixed - it's now taking as much time to ship the data into
Hi Richard et al.,
1. It's not thrashing - I've watched the process grow with prstat -cp `pgrep
gti` and it doesn't top 100MB - as I said I've got 1GB of RAM in my
workstation, with 2.5GB of free swapspace.
2/3. There are no triggers or indexes on the table - they are very simple
and vanilla
"Griggs, Donald" <[EMAIL PROTECTED]> wrote:
> Regarding: ... Something is misconfigured as it takes ~20 times as long to
> insert into an in-memory db, as it does to select from Sybase and store to a
> file. ...
>
>
> I'm not sure you're using transactions. If not, BEGIN a transaction before
>
Are the inserts inside a transaction?
If you're doing a lot of identical inserts you can prepare your
statement so it's parsed once and then just execute it repeatedly.
"CARTER-HITCHIN, David, FM" <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Really hope someone out there can help me with this.
>
> I've written a C++ cache class which extracts ad-hoc data from a Sybase
> database and inserts it into an in-memory SQLite database. This is working
> fine but is very slow
Regarding: ... Something is misconfigured as it takes ~20 times as long to
insert into an in-memory db, as it does to select from Sybase and store to a
file. ...
I'm not sure you're using transactions. If not, BEGIN a transaction before
starting the loop of INSERTs and END it when done. This
Bo Lin <[EMAIL PROTECTED]> wrote:
>
> The Sql looks like
> select x, y, sum(z)/1000 as bw from aa where
> a=1 and b=1 and
> c =1 and d= 6 group by x, y having count(*) > 1 order by bw desc
> limit 10
>
> 1) create index 1 on aa (d)
> 2) create
Bo Lin wrote:
x,y are both column of Table "aa", they may have random value .
And you think that will affect the performance.?
What I think is Sqlite will first use "where cluase" to get limited
value ,then use "group by" in the same .
Maybe, maybe not. Use EXPLAIN to find out.
Igor
Hi,
Really hope someone out there can help me with this.
I've written a C++ cache class which extracts ad-hoc data from a Sybase
database and inserts it into an in-memory SQLite database. This is working
fine but is very slow during the insert data phase. To give some
quantitative idea of what
15 matches
Mail list logo
