Thank you, Igor. :)
2013/6/13 Igor Tandetnik
> On 6/13/2013 12:24 AM, Yongil Jang wrote:
>
>> SELECT
>>name,
>>(SELECT COUNT(id) FROM foods_episodes WHERE food_id=f.id) count
>> FROM
>>foods f
>> ORDER BY count DESC LIMIT 10;
>>
>>
>> Result from v3.7.6 and
On 6/13/2013 12:24 AM, Yongil Jang wrote:
SELECT
name,
(SELECT COUNT(id) FROM foods_episodes WHERE food_id=f.id) count
FROM
foods f
ORDER BY count DESC LIMIT 10;
Result from v3.7.6 and v3.7.11.
Hot Dog|5
Kasha|4
Ketchup|4
..
Result from v3.7.13 and v3.7.17.
Wax Beans (Generic
Dear all,
Following select query returns different result data between v3.7.11 and
v3.7.13~.
CREATE TABLE foods(
id integer primary key,
type_id integer,
name text );
CREATE TABLE foods_episodes(
food_id integer,
episode_id integer );
[Insert some data]
SELECT
name,
(SELECT
On Wed, 12 Jun 2013 13:55:25 +0400
dd wrote:
> I am trying minimize queries on Authors table. For every deletion of
> record from Books, it needs to check in Authors table. One extra
> query execution is there. I am trying minimize that.
You might not be aware of what you
On Wed, Jun 12, 2013 at 1:26 PM, Eric Rubin-Smith wrote:
> I note that there are some assert() statements spread through the SQLite
> code base and not isolated just to the ALWAYS and NEVER macros. Why did
> the authors choose to write, for example,
>
> assert( pName==0 );
I note that there are some assert() statements spread through the SQLite
code base and not isolated just to the ALWAYS and NEVER macros. Why did
the authors choose to write, for example,
assert( pName==0 );
in sqlite3CreateIndex, rather than
ALWAYS( pName==0 );
?
For the purposes of
Simon
Thanks very much for the direction
On 12 June 2013 17:32, Simon Davies wrote:
> On 12 June 2013 16:50, e-mail mgbg25171
> wrote:
> > Tbank you in anticipation for any forthcoming advice
> > I include my program below in
On 12 June 2013 16:50, e-mail mgbg25171 wrote:
> Tbank you in anticipation for any forthcoming advice
> I include my program below in Powerbasic (not disimilar to C)
> and wonder what I need to do in order to "wrap"
> multiple statements (which use prepare,step &
Tbank you in anticipation for any forthcoming advice
I include my program below in Powerbasic (not disimilar to C)
and wonder what I need to do in order to "wrap"
multiple statements (which use prepare,step & finalise) as transactions?
#COMPILE EXE
#DIM ALL
#INCLUDE "sqlite3.inc" 'created 09 May
Hello users,
My application uses 3 SQLite DBs with varying degrees of usage (which I will
explain below). After reading about WAL mode, switched all my DBs from delete
to wal. I'm however disappointed with the outcome and do not see any
significant increase in performance levels (or in some
I got it.
Thank you RSmith and Simon Slavin.
On Wed, Jun 12, 2013 at 2:54 PM, Simon Slavin wrote:
>
> On 12 Jun 2013, at 11:14am, dd wrote:
>
> > Yes Simon. I am looking for it. ON DELETE RESTRICT.
> >
> > I got the answer.
> >
> > Should I enable
On 12 Jun 2013, at 11:14am, dd wrote:
> Yes Simon. I am looking for it. ON DELETE RESTRICT.
>
> I got the answer.
>
> Should I enable foreign key support to use on delete restrict?(
> http://www.sqlite.org/foreignkeys.html)
I think that that fits with your earlier
Foreign Key constraints are enabled or disabled for a connection to a database using the "PRAGMA foreign_keys = ON" SQL on the
connection that should be doing the constraining.
After that, only DBs that have tables with foreign key constraints in one or more Tables will be affected by the setting
Yes Simon. I am looking for it. ON DELETE RESTRICT.
I got the answer.
Should I enable foreign key support to use on delete restrict?(
http://www.sqlite.org/foreignkeys.html)
I have x databases without enabling foreign key support. Can I enable
foreign key support for x+1 database only?
On
Hi there,
May I ask, if you have a one-to-one relation of Books vs. Authors and wish to maintain it as such, why do you not just have one
table with both fields and appropriate indexes? Searches wouldn't really be much faster, but all this deletion maintenance would go
right down to near
On 12 Jun 2013, at 9:49am, dd wrote:
>>> Book titles are not unique.
> I agree. 2. Books : columns(BookId_primarykey,
> Book_id_in_string_format_like_guid)
I’m not sure why you would need a GUID. You can store
2. Books : columns(BookId_primarykey, Title)
Thanks for your response.
It will delete from Author_Books when book deleted.
I am trying minimize queries on Authors table. For every deletion of record
from Books, it needs to check in Authors table. One extra query execution
is there. I am trying minimize that.
On Wed, Jun 12, 2013 at 1:00
Thanks Clements, that does the trick indeed!
2013/6/12 Clemens Ladisch
> Gert Van Assche wrote:
> > is there a way to find all records where a field only contains non-alpha
> > numeric characters, or numbers?
>
> This description is rather vague.
> The following finds
Gert Van Assche wrote:
> is there a way to find all records where a field only contains non-alpha
> numeric characters, or numbers?
This description is rather vague.
The following finds values that do not contain alphabetical characters:
SELECT * FROM MyTable WHERE AField NOT GLOB '*[^A-Za-z]*'
dd wrote:
> my app need to delete author record from author table when author
> doesn't have any books. How to handle this? (I can verify in author
> table, whether this author belongs to any other book when book
> deletion.
You mean the Author_Books table.
> If no, delete from author table.
Hi all,
is there a way to find all records where a field only contains non-alpha
numeric characters, or numbers?
thanks
gert
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dd wrote:
> I am working on sample database application. I want to store book names
> and authors.
>
> 1. Authors: columns(AuthorId_primarykey, Name, SSN)
> 2. Books : columns(BookId_primarykey, Title)//Title is unique
Book titles are not unique.
> 3. Author_Books:
Hi All,
I am working on sample database application. I want to store book names
and authors.
Tables:
1. Authors: columns(AuthorId_primarykey, Name, SSN)
2. Books : columns(BookId_primarykey, Title)//Title is unique
3. Author_Books: columns(AuthorId_primarykey, BookId_primarykey)
Here,
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