g list.
I can no longer provide a reference, however. The book has entered
final production and the online version has been removed from
O'Reilly's feedback site.
http://oreilly.com/catalog/9780596521196/
http://www.amazon.com/Using-SQLite-Jay-Kreibich/dp/0596521189/
N t2 ON (ex)" is
allowed by the diagrams, yet that makes no sense. There are several
other examples.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the
critical.
But your general approach of looping over a select and doing other
things is completely valid. You just need to be ready to handle a
busy condition at the first modification.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is impo
s on
autocommit transactions that I don't know all that well.
I do know is that intermixing modifications while walking through
a SELECT has always worked exactly the way I expected.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is
e value will be used in both locations in
the query.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Jo
over-written with the last-used representation.
To avoid such problems, it is strongly advised you do not mix
parameter types. Either use bare parameters, explicit indexes,
or names-- but pick one and stick with it.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H
o it anyways you will likely be confused.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomf
nd you still need to know how to deal with all the locking and
busy issues that come with that.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wr
, the best
bet is likely to be PRAGMA user_version.
http://www.sqlite.org/pragma.html#pragma_schema_version
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the ten
On Tue, Jun 15, 2010 at 09:47:23PM -0500, Jay A. Kreibich scratched on the wall:
> On Tue, Jun 15, 2010 at 09:48:53PM -0400, Igor Tandetnik scratched on the
> wall:
> > Rich Rattanni <ratta...@gmail.com> wrote:
> > > The creator of SQLite actually gave a talk about usi
nce of pages (assuming no existing free pages).
Contiguous, yes, but the pages may not be in any logical order.
The internal node pages will get shuffled as the tree is built,
meaning you might still have a significant number of seeks.
-j
--
Jay A. Kreibich < J A Y @ K R E I
result seems incorrect. I'm can't offer a definitive answer, however.
> > select * from foo where splitstr( value, '@', 1 ) = 'foo';
> 4|f...@bar
As a workaround, try:
SELECT * FROM foo WHERE splitstr( value, '@', 1 ) COLLATE NOCASE = 'foo';
-j
--
Jay A. Kreibich <
for more details.
> I am not a programmer, but I assume that this a c compiler:
>
> [r...@selkirk sqlite-3.6.23.1]# which cc1
> /usr/libexec/gcc/i386-redhat-linux/4.1.1/cc1
Assuming that is your C compiler, try this:
# CC=cc1 ./configure
-j
--
Jay A. Kreibich < J A Y
uery). There are a small
handful of exceptions (such as chained OR conditions), but that's
a good place to start.
> And in this specific case unless you have a boat load of utc's for
> each client_id the utc index isn't going to buy you much at all.
Correct. It is doubtful the I/O overhead
to
each row.
Yeah, it gets complex real fast
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make t
is written into memory obtained from sqlite3_malloc() and
passed back through the 5th parameter. To avoid memory leaks, the
application should invoke sqlite3_free() on error message strings
returned through the 5th parameter of of sqlite3_exec() after the
error message string is
p the cache up... if you're on a nice desktop with a few gigs of
RAM, bump it up 10x to 100x. There are PRAGMAs to do all this.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong
On Fri, Jun 18, 2010 at 04:07:53PM -0400, Eric Smith scratched on the wall:
> Jay A. Kreibich wrote:
>
> > > I'd really love to avoid writing a big journal file. And I'd love to
> > > avoid doing a billion-row insert in one transaction.
> >
> > So turn jo
On Fri, Jun 18, 2010 at 08:24:47PM -0400, Eric Smith scratched on the wall:
> Jay A. Kreibich wrote:
>
> > Yes. Hence the "and this is the important part" comment. Most of
> > the time when people are building billion-row files, they're building
> > a n
On Fri, Jun 18, 2010 at 07:01:25PM -0700, Scott Hess scratched on the wall:
> On Fri, Jun 18, 2010 at 5:24 PM, Eric Smith <eas@gmail.com> wrote:
> > Jay A. Kreibich wrote:
> >> Yes. Hence the "and this is the important part" comment. Most of
> >>
On Sat, Jun 19, 2010 at 12:58:45PM -0400, Eric Smith scratched on the wall:
> Jay A. Kreibich wrote:
>
> I think the use case will usually be (only) writes followed by (only)
> reads. There may be incremental writes later, but they will hopefully
> be small compared to the i
Check the return value, but call sqlite3_close(). Always.
It will accept a NULL pointer.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to ma
alled, my guess (and this is a
pretty wild one) is the code is forcibly finalizing statements,
leaving behind stale pointers. As soon as one of those is
dereferenced, things crash. This is even more likely if you're
using FTS.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Inte
the object is
destroyed it will do a double close.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
__
s enough
complexity that a net positive gain in stability and reliability
is somewhat questionable.
Invariants are a powerful tool, and they have a strong place in
computer science to write verifiable algorithm proofs. But like any
powerful tool, they're easy to misuse. Their day-to-day
cess times, however,
especially with larger files.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
_
Uggg
On Tue, Jun 22, 2010 at 05:12:38PM -0500, Jay A. Kreibich scratched on the wall:
> On Tue, Jun 22, 2010 at 04:16:42PM -0400, Eric Smith scratched on the wall:
> > Jim Wilcoxson wrote:
> >
> > > Insert times should be constant for the 2nd case: no primary ke
info/sqlite-users
> >
> ___
> sqlite-users mailing list
> sqlite-users@sqlite.org
> http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear:
t prepares a
fresh ID for the next transaction. You would need per-connection
values, but if your application is only using one connection at a
time, it is pretty simple.
You could even do all that in an external extension. You'd need to
somehow load the extension, but you wouldn't need any o
the second problem without
modifications to sqlite3.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel unc
initcli or something that
simply ignored the first line of input. It could also imply -batch.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency
I tried it in sqlite3, only an empty line is printed. Is it the
> cases that sqlite3 change the way to show null after the book was
> published?
Likely. See sqlite3 command ".nullvalue".
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intell
name TEXT,
> PRIMARY KEY(ChildId), FOREIGN KEY(ParentId) REFERENCES
> Parent(ParentId));after insert into Parent values('name1'); how to get
> parentId and set the parentId in table Child.Thanks,
> Zeal.
last_insert_rowid()
http://www.sqlite.org/lang_corefunc.html
-j
h column: table1.a at SQLiteTrigger.plx
> line 35.
>
> I would think that I have referred to the table properly...
Try "OLD.a".
http://www.sqlite.org/lang_createtrigger.html
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: i
gt; fat_datfat)) ON CONFLICT FAIL;
> >
> > Could it be translated into a corret sintax without add another field
> > (fat_year)?
>
> No.
You could, however, write a collation that only pays attention to the
year, and then build your index and queries using that.
-j
--
Jay
On Sat, Jun 26, 2010 at 03:51:12AM +0100, Simon Slavin scratched on the wall:
> So you're posting to a mailing list you don't read ?
People replay without seeming to read all the time...
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: i
g that might be converted (in the case of the functions)
but given raw in the case of just returning a raw column. For
example:
SELECT X, typeof( X ) FROM MY_POINTS;
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that y
he master table to change the name of target_table2 to
> target_table
>
> According to the FAQ, sqlite_master is read-only. Is there any to pull of
> this trick?
You can do this with "PRAGMA writeable_schema", but I think the
real answer you're looking for is ALTER TABLE ..
for example.
ROWID values can change, but PK values cannot be changed or altered.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to
actually surprises me, since I was under the impression
CREATE TABLE ... AS SELECT always produced NONE affinities. Is this
a semi-recent (last year) change?
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that yo
hat to do with it.
If you read that SQL into any other database, all best are off, and
this is the very least of your compatibility concerns.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to
s like it has been there, in some form, for some
time. I suspect I'm mis-remembering a big discussion from some months
ago about why a generated table that uses a numeric expression doesn't
have numeric columns, or something like that.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C
ults. Your concerns about PKs and
FKs don't even come into play, as they can't happen-- even within
the same implementation.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has th
de csv
sqlite> select * FROM t;
1,2,3
sqlite>
Basically, the "mode" operators may set the separator. It wouldn't
really be a *C*SV output if it didn't.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that y
er is
'INT.'
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
nt for somewhat large databases that have a high flux.
Overall, I tend to manually VACUUM files when I delete something very
large, or when roughly 40% of the contents have changed. I've never
done it in code. There are many applications that use utility
databases (prefs, configs, and even docu
empt to copy the data with an INSERT...SELECT command. This
usually only works with simple tables, however, and gets messy with
indexes, foreign keys, and other constraints.
If you really want to see how to do it, look at the code for VACUUM.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H
quot;d" in these statements?
Without looking at the docs? Do you think most programmers do?
Do you think they usually get it "right" ?
int i, d;
sscanf( "0123", "%i", );
sscanf( "0123", "%d", );
-j
--
Jay A. Kreibich
lt-set column is a direct
column reference, and only if SQLite is compiled to handle meta-data.
Declared types are fairly unimportant in SQLite. They don't mean
much. Most applications never need to deal with them.
-j
> On 07/07/10 04:41, Jay A. Kreibich wrote:
> > On Tue, Jul
For
example, these will both insert the same three bytes
(ASCII 'A' = 0x41):
X'414243'is a BLOB value.
'ABC' is a text value.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but show
in size, the database
lifespan is significant, and the database will be subjected to an
extremely high amount of flux and row thrashing.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to th
o SQLite" by Mike Owens. It is a bit
older, but the core APIs haven't really changed:
http://www.amazon.com/Definitive-Guide-SQLite-Mike-Owens/dp/1590596730/
This one is coming out next month. I like it.
http://www.amazon.com/Using-SQLite-Jay-Kreibich/dp/0596521189/
-j
--
Jay A. Kre
k that's the bulk of it, however.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
_
s in it, you can also just keep
asking for BLOBs. SQLite will covert them using the rules defined
here: http://sqlite.org/c3ref/column_blob.html
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing
ses newer APIs
not working on an older version of the OS. If you want the ability
to do this, don't use new features (or turn it off every time you
close the database).
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you
s been fixed?
Not if you understand how it works. Not fixing what isn't broken.
> Letter c) makes me wonder: is there is a way to reference both views?
As others have answered, just qualify the identifier with a database
name.
-j
--
Jay A. Kreibich < J A Y @ K R
ven more sense to have "PRAGMA
wal=[on|off]" or "PRAGMA transaction=[wal|journal]" ?
> Other suggestions?
This has nothing to do with WAL, but it might be nice to expose
the logic that does SQL-type => SQLite-affinity mappings
(i.e. sqlite3AffinityType()):
int
On Thu, Jul 08, 2010 at 08:06:23PM +0400, Alexey Pechnikov scratched on the
wall:
> 2010/7/8 Jay A. Kreibich <j...@kreibi.ch>
>
> > > It's not helpful for backward compability. How about version downgrade of
> > > the Android or some other mobile OS and as result i
ill return rows 211 through 420.
If you want row 210, you need "LIMIT 1 OFFSET 209". Or "LIMIT 209, 1"
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wr
This causes a problem because sprintf stops printing when it
> encounters ?null?.
Don't do that. Use statement parameters and bind the data directly.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that
K constraint.
> Since that table/column exists today without any restrictions, how
> do I alter it to restrict the values entered?
You can't. You need to build a new table and copy the data over.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like u
On Sun, Jul 11, 2010 at 09:12:09AM -0500, Jay A. Kreibich scratched on the wall:
> On Sun, Jul 11, 2010 at 01:45:50PM +, c...@comcast.net scratched on the
> wall:
>
> > I would like to restrict the values that are entered into
> > the "recommendation" colu
you're looking for.
There is no general-purpose way of doing this that can be used for
different size lists. You can have different statements with
different numbers of parameters, but each statement parameter can
represent only one value.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C
place to lookup the possible choices, which is
useful for building drop-down menus, etc.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
fee
On Sun, Jul 11, 2010 at 02:15:09PM -0400, Igor Tandetnik scratched on the wall:
> Jay A. Kreibich <j...@kreibi.ch> wrote:
> > You can't add a CHECK constraint to an existing table.
>
> You should be able to do it by directly updating sqlite_master table:
>
>
set." You can make the column NOT NULL with no DEFAULT.
You can also add a CHECK constraint to make sure the string isn't
empty.
If you do it with triggers instead, make sure you create both update
and insert triggers.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H &g
for example, 2, 4, 8, 16, etc.,
parameters. Find the one that fits what you need, and bind NULLs to
the end (or just call sqlite3_clear_bindings()).
NULL IN ( NULL ) returns NULL, but ( NULL IN ( NULL ) IS 1 ) will
return 0.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
ocess has it open.
Are you using sqlite3_exec() for all of these? My first guess is that
you're not finalizing the INSERT statement (or allowing it to run to
completion) before trying to drop the table.
You can't drop a table if there are any in-progress statements.
-j
--
Jay A. Kre
On Mon, Jul 12, 2010 at 12:00:40PM -0400, Sam Carleton scratched on the wall:
> On Mon, Jul 12, 2010 at 10:36 AM, Jay A. Kreibich <j...@kreibi.ch> wrote:
>
> >
> > Are you using sqlite3_exec() for all of these? My first guess is that
> > you're not finalizing the
A join B on A.a=B.a;
Replace "A.a=B.a" with "A.a COLLATE NOCASE = B.a"
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
ial... which means there are really
good reasons why it isn't there.
There is a really big gun right here (3.6.23.1):
$ grep -n \"-journal\" sqlite3.c
35406:memcpy(>zJournal[nPathname], "-journal", 8);
You're not finding "db-journal" because the "db" comes from your
ht try keeping temp files in memory.
See: "PRAGMA temp_store = memory"
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tende
rimary key.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
__
This technique defragements and re-packs the
pages, not unlike the VACUUM command. It should give you pretty good
numbers for the VACUUMed size, but not for the current size.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is im
.
> If so, how do I specify that?
CREATE TABLE a_b_link (
a_id INTEGER NOT NULL REFERENCES a( _id ),
b_id INTEGER NOT NULL REFERENCES b( _id ),
PRIMARY KEY ( a_id, b_id )
);
The PK will make an index over a_b_link(a_id,b_id). Chances are
good you'll also want an
inted
out, the first one can also utilize an index, while the second one
cannot.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people
rt >2GB as long as
> you have the disk space.
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
__
a tad bit ugly, but less so than modifying the default VFS.
I'd be very concerned about locking under NFSv2 as well. You might
look into dot-locking instead. NFSv2 has no locking.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it
quot;Using SQLite" wraps PRAGMA
database_list in a virtual table so that you can do just this.
Of course, it calls PRAGMA database_list interally, so it isn't any
faster than doing it yourself.
http://www.amazon.com/Using-SQLite-Jay-Kreibich/dp/0596521189/
(Next month!)
-j
--
J
s
don't even use binary integers to store natural-number values.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel unco
were you expecting the result to show up?
> It should be faster to name a specific column rather than use '*':
Definitely not, for many reasons. It may not even provide the
same answer.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwea
ould be expected behavior.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
sume you could also strip out the Tcl bindings, build them as a
different library (dependent on a generic sqlite3.so build), and
just link everything that way.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you
u just want to expose the the system crypt() function
to the SQL environment, that's a 15 minute project. Maybe an hour if
you've never written a custom SQL function before. Package it all up
into an extension, and you can drop it into any environment, no
patches required.
-j
--
J
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
___
sql
think that's a good compromise. While it is a
somewhat standard function in many database systems, it is also an
oddball that most people don't use. As such, it is there if you
need it, but the majority of people will never notice it isn't
there by default.
-j
--
Jay A. Kreibich &
it in Oracle.
http://www.sqlite.org/faq.html#q7
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
On Mon, Aug 02, 2010 at 11:21:12AM -0500, Jay A. Kreibich scratched on the wall:
> On Mon, Aug 02, 2010 at 11:11:25AM -0500, Chris Hare scratched on the wall:
> > I read on the SQLite how to get the list of tables in the SQLite database.
> >
> > How do I get the table
On Wed, Aug 04, 2010 at 01:00:02PM -0500, Chris Hare scratched on the wall:
> How do I figure out what version of sqlite3 is actually installed
> in the python install? (It is python2.6)
If it isn't too old:
SELECT sqlite_version();
-j
--
Jay A. Kreibich < J A Y @ K R E
I don't actually
know, however.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
___
As far as I know, there is no way to extract the
current function list.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel unco
the connection, not the
statements, so two statements using the same connection can never
deadlock.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the
s
around with every write (including writes to existing space in
existing files) to spread out the write cycles.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tende
or issue. One of the "how
to write a custom SQL function" examples in "Using SQLite" builds a
wrapper around sqlite3_limit(). I know people that are not using the
C interface are faced with additional challenges when it comes to
loading extensions or modifying the core SQLite lib
r not.
My personal opinion is that this is a unique enough feature, and
workarounds exist (even if they aren't exactly pretty), that it
does not justify the long-term testing and upkeep costs.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it
On Mon, Aug 23, 2010 at 08:09:51AM -0500, Peng Yu scratched on the wall:
> Hi,
>
> Since I don't find a command that can directly export the data into a
> file, I use pipe to export data from sqlite3 to a tsv file. Is there a
> better way to do so?A
See ".output "
ot;. Once
purchased, the book can be downloaded in DRM-free PDF, Mobi, and ePub.
http://oreilly.com/ (upper right corner)
http://oreilly.com/catalog/9780596521189/
O'Reilly, Amazon, and other vendors also have the print version
in stock:
Amazon ($44.99):
http://www.amazon.com/Usi
is working on.
-j
--
Jay A. Kreibich < J A Y @ K R E I B I.C H >
"Intelligence is like underwear: it is important that you have it,
but showing it to the wrong people has the tendency to make them
feel uncomfortable." -- Angela Johnson
___
saved in the file,
> >> they're not part of the attachment.
> >
> > Yes it does
>
> So you are trying to create a VIEW which does already exist. In that
> case, there's no mystery about why you're getting an error message.
No, he's trying the *PREPARE* a CREATE VIEW
On Thu, Aug 26, 2010 at 11:59:03AM -0400, Igor Tandetnik scratched on the wall:
> Jay A. Kreibich <j...@kreibi.ch> wrote:
> >> So you are trying to create a VIEW which does already exist. In that
> >> case, there's no mystery about why you're getting an error message
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