"Stephen Oberholtzer"
<[EMAIL PROTECTED]> wrote in
message
news:[EMAIL PROTECTED]
> Idea: Submit a patch that allows LIKE expressions that start with a
> fixed
> string (i.e. don't start with '%') to use the index to improve
> performance. (SQL Server 2000 does this.)
http://www.sqlite.org/optover
On Tue, Sep 9, 2008 at 9:04 AM, Bruno Moreira Guedes <[EMAIL PROTECTED]>wrote:
> 2008/9/9 P Kishor <[EMAIL PROTECTED]>:
> > On 9/9/08, Bruno Moreira Guedes <[EMAIL PROTECTED]> wrote:
> >> Hi people!!
> >>
> >> I'm getting problems with a bigger table. I'm doing a query like this:
> >>
> >> SELEC
Hi all,
I had a function to open the database and set some database properties as below:
sqlite3_exec(pDb, "PRAGMA synchronous=OFF ", NULL, 0, &errMsg);
and this function is crashed on some of the database but not all and return the
message as below:
Program received signal SIGSEGV, Segmen
Hi -- I wonder if anybody can help? I recently tried to update my copy of
sqlite on my machine (running OS X 10.4) and stupidly overwrote my system's
copy (i.e. I didn't use the /usr/local prefix).
Now OS X 10.4 is fairly broken, and as far as I can ascertain it seems the
default install of sqlit
jerry wrote:
> I have a CHAR field which is usually an integer. I would like to sort
> this field as if it is an integer so that 1a 5b 10c 12xxx does not get
> sorted as 10c 12xxx 1a 5b. I have successfully used something like
> "ORDER BY CHARFIELDNAME - 0" which seems to convert the expressio
HI all,
I'm trying to use the memsys5 subsystem (3.6.2). I've run the configs for the
MEMSTATUS, HEAP, SCRATCHBUF:
During processing I get an out of mem error returned from a select statement.
Here is the output of various sqlite3 memory highwater marks.
SQLITE_STATUS_MEMORY_USED [65469440]
SQ
Lothar Behrens wrote:
>
> But when you say, that, if jornal files are open, transactions are
> opened, I would set a
> breakpoint at the line of code the transaction opens these jornal file
> and I could look
> arount there from who the transaction comes.
>
> Is that an option ?
>
> What fun
Am 09.09.2008 um 20:46 schrieb Dennis Cote:
> Lothar Behrens wrote:
>>
>> I have added this function right after sqlite3_step, that does the
>> prepared insert statement.
>>
>> int nReturn = sqlite3_step((sqlite3_stmt*)(*start));
>>
>>int autocommit = sqlite3_get_autocommit(m_pDatabas
I'm guessing he means like automatically (IE using triggers).
Which also would be my answer (use triggers).
On Tue, Sep 9, 2008 at 1:52 PM, P Kishor <[EMAIL PROTECTED]> wrote:
> On 9/9/08, Josh Millstein <[EMAIL PROTECTED]> wrote:
>> Hello,
>>
>> Is there anyway to perform a trim to everything t
I have a CHAR field which is usually an integer. I would like to sort
this field as if it is an integer so that 1a 5b 10c 12xxx does not get
sorted as 10c 12xxx 1a 5b. I have successfully used something like
"ORDER BY CHARFIELDNAME - 0" which seems to convert the expression to
an integer the
Lothar Behrens wrote:
>
> I have added this function right after sqlite3_step, that does the
> prepared insert statement.
>
> int nReturn = sqlite3_step((sqlite3_stmt*)(*start));
>
> int autocommit = sqlite3_get_autocommit(m_pDatabase);
>
> if (autocommit == 0) {
>
>
Prior post was too big :-(
Here the short anser to my last try to figure out the current file name:
> Now I have the result. It is the database file I am thinking to be in.
>
> seq name file
> -
On 9/9/08, Josh Millstein <[EMAIL PROTECTED]> wrote:
> Hello,
>
> Is there anyway to perform a trim to everything that is entered into a table
> instead of trimming before I put data in?
aren't "perform a trim to everything that is entered into a table" and
"trimming before I put data in" the sa
2008/9/9 Igor Tandetnik <[EMAIL PROTECTED]>:
> Bruno Moreira Guedes
> <[EMAIL PROTECTED]> wrote:
>> I can split my 'something' in st0, st1, st2, stN... I have a '.'
>> betwen this values. But the number of "st"s is undefined. I tried to
>> do "the necessary" number comparsions, appending tokens:
>>
>> Is there any
>> reliable method to determine the minimum page-cache allocation size
>> needed for a given page_size?
>>
>
>sqlite3_status(SQLITE_STATUS_PAGECACHE_SIZE, ...)
Unfortunately, there is extra overhead involved which is not handled by the
page cache but is allocated by malloc() if I
Hi list.
Just thought I'd pass this along as a suggestion:
I mistakenly called:
sz = pgSz * pgCache...
pBuf = malloc (sz).
sqlite3_config(SQLITE_CONFIG_PAGECACHE,pBuf, sz, pgCache );
This functioned however the sqlite MallocInit cored due to a pageSize of 32Meg.
The documentation does clea
Josh Millstein <[EMAIL PROTECTED]>
wrote:
> Is there anyway to perform a trim to everything that is entered into
> a table instead of trimming before I put data in?
I'm not sure I understand the question. Are you perhaps thinking of
update mytable set myfield=trim(myfield);
Igor Tandetnik
__
Am 09.09.2008 um 17:20 schrieb Dennis Cote:
> Jay A. Kreibich wrote:
>>
>> Everything you describe sounds exactly as if a transaction has been
>> started, but is not committed. When you close the database, the
>> transaction is automatically (and correctly) rolled back. This will
>> also de
Hello,
Is there anyway to perform a trim to everything that is entered into a table
instead of trimming before I put data in?
Thanks,
Josh
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Bruno Moreira Guedes
<[EMAIL PROTECTED]> wrote:
> I can split my 'something' in st0, st1, st2, stN... I have a '.'
> betwen this values. But the number of "st"s is undefined. I tried to
> do "the necessary" number comparsions, appending tokens:
>
> SELECT fields FROM sometable WHERE field = 'st0.st
Correcting a minor nit:
Igor Tandetnik wrote:
> Magnus Manske <[EMAIL PROTECTED]>
> wrote:
> The condition could be written a bit more laconically:
>
> pos1 BETWEEN 1 AND 100
>
>> On my table (ca. 180K entries) this takes about 10 seconds for the
>> above, which returns all rows.
>
> Since
On Sep 9, 2008, at 10:10 PM, Ribeiro, Glauber wrote:
> Hello,
>
> Here's another newbie question, but it doesn't look like the
> documentation for vacuum covers this.
>
> I'm using SQLite to store an application's log. Suppose I have a
> program
> that runs nightly and deletes log records that
Jay A. Kreibich wrote:
>
> Everything you describe sounds exactly as if a transaction has been
> started, but is not committed. When you close the database, the
> transaction is automatically (and correctly) rolled back. This will
> also delete the journal file.
>
> I know you said yo
2008/9/9 Dennis Cote <[EMAIL PROTECTED]>:
> Bruno Moreira Guedes wrote:
>>
>> I can split my 'something' in st0, st1, st2, stN... I have a '.'
>> betwen this values. But the number of "st"s is undefined. I tried to
>> do "the necessary" number comparsions, appending tokens:
>>
>> SELECT fields FROM
On Tue, Sep 09, 2008 at 04:55:01PM +0200, Lothar Behrens scratched on the wall:
> I prepare an insert statement and bind the parameters that afterwards
> get executed with sqlite_step(). This function then returns SQLITE_DONE
> and I prepare a new select statement wich let me display the just
Hello,
Here's another newbie question, but it doesn't look like the
documentation for vacuum covers this.
I'm using SQLite to store an application's log. Suppose I have a program
that runs nightly and deletes log records that are older than 60 days,
to keep the database from growing without bound
Lothar Behrens wrote:
>
> Does someone have any more ideas how to narrow the problem ?
> (After the insert statement until to closing of that file)
>
Try executing "pragma database_list;" after the insert. Double check the
file name and path shown for the main database and ensure that is the
s
Hi,
I am still struggle with my insert statement with bound parameters
that - followed step by step in the VDBE - seems to be inserted but
is not available after closing the database. (Checked with sqliteman)
I have also created a small test application using my database API
wrappers. In this
On Sep 8, 2008, at 8:28 PM, Dave Toll wrote:
> Hello list
>
>
>
> I'm using SQLite 3.6.2 on an embedded C platform, and I recently
> switched from memsys3 to memsys5. SQLite memory usage
> (sqlite3_memory_used()) for a fully-cached database nearly doubled
> from
> 4.7MB to 8.9MB (using the same
Bruno Moreira Guedes wrote:
>
> I can split my 'something' in st0, st1, st2, stN... I have a '.'
> betwen this values. But the number of "st"s is undefined. I tried to
> do "the necessary" number comparsions, appending tokens:
>
> SELECT fields FROM sometable WHERE field = 'st0.st1.st2.st3' OR fi
[EMAIL PROTECTED] wrote:
> I'm using some wrapper but modified.
> Here is my Exec method:
>
>
> if ( rc == SQLITE_BUSY)
> {
> Sleep(0);
> rc = _sqlite3_reset(m_stmt);
> continue;
> }
>
You should not be resetting the prepared statement
2008/9/9 Igor Tandetnik <[EMAIL PROTECTED]>:
> "Bruno Moreira Guedes"
> <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
>> Yes... I need to get the rows where 'something' ENDS wifh
>> '.[field-value]'. But I really think this solution isn't very well.
>
> Can field-value contain a per
"Bruno Moreira Guedes"
<[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Yes... I need to get the rows where 'something' ENDS wifh
> '.[field-value]'. But I really think this solution isn't very well.
Can field-value contain a period? If not, you can just extract the
portion of 'somet
2008/9/9 P Kishor <[EMAIL PROTECTED]>:
> On 9/9/08, Bruno Moreira Guedes <[EMAIL PROTECTED]> wrote:
>> Hi people!!
>>
>> I'm getting problems with a bigger table. I'm doing a query like this:
>>
>> SELECT field FROM tables WHERE '%.' || somefield LIKE 'somestring'
>
> interesting variation on the
On 9/9/08, Bruno Moreira Guedes <[EMAIL PROTECTED]> wrote:
> Hi people!!
>
> I'm getting problems with a bigger table. I'm doing a query like this:
>
> SELECT field FROM tables WHERE '%.' || somefield LIKE 'somestring'
interesting variation on the syntax. Usually one would
WHERE somefield LIKE
Hi people!!
I'm getting problems with a bigger table. I'm doing a query like this:
SELECT field FROM tables WHERE '%.' || somefield LIKE 'somestring'
The table has about 500.000 registers. When the table is short, it's
too fast, but when it's populated it gets slow. I've been imagined it
before.
I'm using some wrapper but modified.
Here is my Exec method:
while(1)
{
rc = _sqlite3_step(m_stmt);
if (rc == SQLITE_ROW)
return 1;
if (rc == SQLITE_DONE)
{
_sqlite3_reset(m_stmt);
return 0;
Hello list
I'm using SQLite 3.6.2 on an embedded C platform, and I recently
switched from memsys3 to memsys5. SQLite memory usage
(sqlite3_memory_used()) for a fully-cached database nearly doubled from
4.7MB to 8.9MB (using the same DB file in each test). Is this
normal/expected?
I've also
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