Hi All,
Somehow original author missed one INTETER column as searchable
field ( like unique or primary key) in the table. When execute queries
based on this integer field in where clause/joins, huge performance hit.
So, I am planning to add INDEXING for this integer column.
Is there any
As many of you know, I am trying to learn SQL using C++.
Below is an error I get when I try using the C++ example below it.
Error Code: 1
Error Message: near VALUES: syntax error
Glib::ustring apstr;
Glib::ustring sName;
int
VALUES is used for INSERTing into a table, not for SELECTing. This is not
valid SQL (I would help you fix it, but I can't figure out what you were
trying to achieve.)
Here is a great reference: http://sqlite.org/lang_select.html
On Thu, Sep 6, 2012 at 11:18 AM, Arbol One arbol...@gmail.com wrote:
On Thu, Sep 6, 2012 at 10:18 AM, Arbol One arbol...@gmail.com wrote:
As many of you know, I am trying to learn SQL using C++.
FWIW: it's much easier to learn SQL in its native environment (e.g. by
using the sqlite shell app) and then apply that learning to your
programming language of choice.
On Thu, 6 Sep 2012 12:02:03 +0400, Durga D durga.d...@gmail.com wrote:
Hi All,
Somehow original author missed one INTETER column as searchable
field ( like unique or primary key) in the table. When execute queries
based on this integer field in where clause/joins, huge performance hit.
So,
And, when you have problems, you should always examine your SQL by running the
EXACT same string you generate in your program through the sqlite3 shell. This
will help you to figure out if your SQL is wrong or your C++ is wrong.
For example even just your SELECT portion generates the wrong
Thank you Kees.
On Thu, Sep 6, 2012 at 3:34 PM, Kees Nuyt k.n...@zonnet.nl wrote:
On Thu, 6 Sep 2012 12:02:03 +0400, Durga D durga.d...@gmail.com wrote:
Hi All,
Somehow original author missed one INTETER column as searchable
field ( like unique or primary key) in the table. When
On Thu, Sep 6, 2012 at 7:52 AM, Black, Michael (IS)
michael.bla...@ngc.comwrote:
And, when you have problems, you should always examine your SQL by running
the EXACT same string you generate in your program through the sqlite3
shell. This will help you to figure out if your SQL is wrong or
Many thanks to all of you who took the time to correct my misunderstanding of
basic SQL.
I ran a little test in PostgreSQL (which is the quickest thing I have to play
with), and of course, you are all correct and the query does work as designed.
I was trying to figure out how to think about
Yeah -- I should've been in a better teaching mode
Trying to keep things simple opens up these type of security problemsthough
there are lots of situations where this works just fine and is no problem at
all (e.g. when you don't have user input or it's completely under your own
control
Can sqlite databases be read from a read-only media? I seem to remember
seeing something about this on the website, but can't find it.
--
˙uʍop-ǝpısdn sı ɹoʇıuoɯ ɹnoʎ 'sıɥʇ pɐǝɹ uɐɔ noʎ ɟı
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'twould appear so...the shell even knows about a read-only database.
$ sqlite3 test.db
SQLite version 3.7.9 2011-11-01 00:52:41
Enter .help for instructions
Enter SQL statements terminated with a ;
sqlite create table test(a,b);
sqlite insert into table values(1,2);
Error: near table: syntax
Can sqlite databases be read from a read-only media? I seem to remember
seeing something about this on the website, but can't find it.
Adding on to Michael's reply, you may need to ensure that you have a writeable
location for the temp_store depending on what queries you issue.
On Thu, Sep 6, 2012 at 9:39 AM, Baruch Burstein bmburst...@gmail.comwrote:
Can sqlite databases be read from a read-only media? I seem to remember
seeing something about this on the website, but can't find it.
Usually.
If the last writer to the database file crashed and left a hot
On 6 Sep 2012, at 3:13pm, Richard Hipp d...@sqlite.org wrote:
If the last writer to the database file crashed and left a hot
journalhttp://www.sqlite.org/atomiccommit.html#section_4_2then the
next reader to come along must rollback that journal before it can
start reading, and that will
On Thu, Sep 6, 2012 at 10:26 AM, Simon Slavin slav...@bigfraud.org wrote:
On 6 Sep 2012, at 3:13pm, Richard Hipp d...@sqlite.org wrote:
Suppose you open a database in read-only mode (using SQLITE_OPEN_READONLY)
and SQLite finds a hot journal for it. Is tidying up the hot journal done
even
This analysis is a good candidate for inclusion in a FAQ or similar
document.
On 9/5/2012 7:28 PM, Keith Medcalf wrote:
sqlite create table alpha (frequency, term);
sqlite create table beta (term, frequency);
sqlite create index betaterm on beta(term);
sqlite .explain
sqlite explain query plan
On 6 Sep 2012, at 3:40pm, Richard Hipp d...@sqlite.org wrote:
When SQLITE_OPEN_READONLY is used, then the file might as well be on CDROM
as far as SQLite is concerned. It won't write to it. Even to rollback a
hot journal.
Thanks. That makes sense.
Simon.
rc = sqlite3_step(mystmt);
if(rc == SQLITE_ROW ) {
The code, in this case, does not process this statement!!?? --
apstr = (const char*)sqlite3_column_text(mystmt,pos);
std::cout apstr std::endl; //-- this is not executed
}
Table:
id | tile | fname | mname | lname |
What is the value returned from sqlite3_step()?
RobR
-Original Message-
From: sqlite-users-boun...@sqlite.org [mailto:sqlite-users-boun...@sqlite.org]
On Behalf Of Arbol One
Sent: Thursday, September 06, 2012 12:14 PM
To: 'General Discussion of SQLite Database'
Subject: [sqlite] C++ -
On 9/6/2012 12:14 PM, Arbol One wrote:
rc = sqlite3_step(mystmt);
if(rc == SQLITE_ROW ) {
The code, in this case, does not process this statement!!??
It's possible that no row actually matches the condition, so
sqlite3_step returns SQLITE_DONE on the first call.
--
Igor Tandetnik
You need to :
cout this-SQLStatement.c_str() endl;
Then put that SQL into the sqlite3 shell against your database and ensure you
actually get rows back.
You also need to be sure you're looking at the same database. Many times
people have multiple copies and the one the program uses is not
Hi, it doesn't look like it is possible to get offset information from
matchinfo. Is that right? It seems like matchinfo should be the uber set of
data for matching. Sometimes early occurrence of a match may mean more
significance.
Thanks,
Tim
___
Hi Guys,
I get a bus error while running a sqlite based app on sparc machine (64
bits mode)
here is my stack trace ,
74ab2dec sqlite3_set_authorizer + 505c
74adb8cc sqlite3_vtab_config + 99c0
74adc184 sqlite3_vtab_config + a278
74add0f4
On Thu, Sep 6, 2012 at 1:02 PM, Tal Tabakman tal.tabak...@gmail.com wrote:
Hi Guys,
I get a bus error while running a sqlite based app on sparc machine (64
bits mode)
here is my stack trace ,
74ab2dec sqlite3_set_authorizer + 505c
74adb8cc sqlite3_vtab_config +
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On 28/08/12 12:48, Foster, Kristina (CIV) wrote:
Thank you for the clarification. I was wondering if I missed something
with the command line or Python interface. I will stay tuned for the
sqlite3_db_status method in future releases.
A new APSW
Is this a tricky question?
int sqlite3_step(sqlite3_stmt*);
-Original Message-
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Rob Richardson
Sent: Thursday, September 06, 2012 12:21 PM
To: General Discussion of SQLite Database
Subject: Re:
On Thu, Sep 6, 2012 at 5:26 PM, Simon Slavin slav...@bigfraud.org wrote:
On 6 Sep 2012, at 3:13pm, Richard Hipp d...@sqlite.org wrote:
If the last writer to the database file crashed and left a hot
journalhttp://www.sqlite.org/atomiccommit.html#section_4_2then the
next reader to come
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