3 ms·
I've tried to get myself writing a few times but never succeeded, so I don't have a blog. But - I am actually doing parameters like so in the view where I copi
by Izkata 4y ago
I've tried to get myself writing a few times but never succeeded, so I don't have a blog. But - I am actually doing parameters like so in the view where I copied the above from:
CREATE TABLE view_confs (key, value);
INSERT INTO view_confs VALUE ('start', 2), ('end', 4);
Now prefix it with another one:
vals_range(x, y) AS (
SELECT x, y
FROM vals
WHERE x >= (SELECT value FROM view_confs WHERE key = 'start')
AND x < (SELECT value FROM view_confs WHERE key = 'end')
),
And swap the rest of the original query to use "vals_range" instead of "vals". Just gotta remember to update view_confs with the new range whenever you want to change the view. I think it should work inside a transaction to avoid multiple threads interfering with each other, but also to be clear: This is a workaround for sqlite not having stored procedures, and not wanting to implement it in code (so I can JOIN to the view in other queries). Better to use stored procedures in other databases than this workaround.