Reading your response, thinks.
I did however find that the incoming data did not conform to what I
expects (contiguous series_id),
so the code worked, my thinking did not.
On 5/10/10, Tim Romano wrote:
> The select/group by part of your statement will group table SERIESDATA by
> text-column serie
The select/group by part of your statement will group table SERIESDATA by
text-column series_id (aliased to id) and return the min and max data_index
for each grouping, assuming those columns are populated with data for each
row. The set will have three columns and some number of rows, one per id.
# series data looks like:
create table seriesdata (
data_index INTEGER PRIMARY KEY autoincrement,
series_id text,
year numeric,
value numeric);
# and is filled
insert into seriesid
select
s.series_id as id, min(data_index),max(data_index)
elaboration: " ... you could this (to find the set to be inserted): "
TR
___
sqlite-users mailing list
sqlite-users@sqlite.org
http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
I don't understand why you are simulating distinct. Either something is
going completely over my head (quite possible) or you are making things
harder than they need to be.
If you want to insert into T1 a distinct set of rows from T2 that don't
already exist in T1, you could do this:
select dis
Got it, thinks Jay.
On 5/6/10, Jay A. Kreibich wrote:
> On Thu, May 06, 2010 at 05:10:31AM -0700, Matt Young scratched on the wall:
>> OK, I got it.
>>
>> insert into seriesid
>> select series_id,min(ROWID) from
>> seriesdata group by series_id;
>>
>> This gets me a table with a pointe
On Thu, May 06, 2010 at 05:10:31AM -0700, Matt Young scratched on the wall:
> OK, I got it.
>
> insert into seriesid
> select series_id,min(ROWID) from
> seriesdata group by series_id;
>
> This gets me a table with a pointer to the firs instance of series_id
> in the bigger table hav
OK, I got it.
insert into seriesid
select series_id,min(ROWID) from
seriesdata group by series_id;
This gets me a table with a pointer to the firs instance of series_id
in the bigger table having multiple copies, it assumes that the ids
are contiguous, allowing me to use offset,
On 6 May 2010 12:03, Matt Young wrote:
> # I am doing a simulation of distinct
>
> insert into seriesid (series_id,pointer)
> select series_id,ROWID from seriesdata as s
> where s.series_id not in(
> select
> series_id
> f
Hi,
Have you had a look at the EXCEPT statement?
http://www.sqlite.org/lang_select.html (bottom of page)
"EXCEPT takes the result of left SELECT after removing the results of
the right SELECT. "
Does this make sense to you?
/Fredrik
On Thu, May 6, 2010 at 1:03 PM, Matt Young wrote:
> # I am d
# I am doing a simulation of distinct
insert into seriesid (series_id,pointer)
select series_id,ROWID from seriesdata as s
where s.series_id not in(
select
series_id
from
seriesid
11 matches
Mail list logo
