On 2019/02/12 7:29 PM, Ivan Krylov wrote:
I can supply a list of source_ids in order of decreasing priority from
an array in my application, though I lose cross-database portability
(is there a portable way to pass an array to a parameterized query,
though?)...
There is no fully portable
On Tue, 12 Feb 2019 13:31:59 +0100
Clemens Ladisch wrote:
> SQLite allows to SELECT columns that are not mentioned in the GROUP
> BY clause, but they get their values from a random row in the group.
Thank you for pointing this out! I was aware of the row being
random when selected this way, but
On Tue, 12 Feb 2019 14:08:20 +0200
R Smith wrote:
> The semantics are made more legible using a CTE here, but can be
> done without it. The essential difference is that it uses a sub-query
> to obtain the minimum priority as opposed to introducing a sub-table
> sort.
Thank you for your reply!
Ivan Krylov wrote:
> select * from test where id in (1,2) group by id;
Please note that this is not standard SQL; SQLite allows to SELECT
columns that are not mentioned in the GROUP BY clause, but they get
their values from a random row in the group.
On 2019/02/12 1:13 PM, Ivan Krylov wrote:
Hi!
I have a table of some values obtained from different sources:
create table test (
id, source_id, value,
primary key(id, source_id)
);
insert into test values
(1, 1, 11), (1, 2, 12), (1, 3, 13),
(2, 1, 21),
Hi!
I have a table of some values obtained from different sources:
create table test (
id, source_id, value,
primary key(id, source_id)
);
insert into test values
(1, 1, 11), (1, 2, 12), (1, 3, 13),
(2, 1, 21),
(3, 2, 32);
When SELECTing the values, I
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