CREATE TABLE t1(x, y, CHECK( date(x) BETWEEN '2017-07-01' AND '2017-07-31' ));
INSERT INTO t1(x,y) VALUES('2017-07-20','one');
SELECT * FROM t1;
CREATE TABLE t2(x,y);
INSERT INTO t2(x,y) VALUES(1, '2017-07-20'), (2, 'xyzzy');
CREATE INDEX t2y ON t2(date(y));
SELECT x, y FROM t2 ORDER BY x;
CREATE TABLE t3(a INTEGER PRIMARY KEY,b);
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
INSERT INTO t3(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
UPDATE t3 SET b='now' WHERE a=500;
EXPLAIN QUERY PLAN
SELECT a FROM t3
WHERE typeof(b)='real'
AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08';
SELECT a FROM t3
WHERE typeof(b)='real'
AND datetime(b) BETWEEN '2017-07-04' AND '2017-07-08'
ORDER BY a;
CREATE TABLE t4(a INTEGER PRIMARY KEY,b);
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000)
INSERT INTO t4(a,b) SELECT x, julianday('2017-07-01')+x FROM c;
UPDATE t4 SET b='now' WHERE a=500;
DELETE FROM t4 WHERE a=500;
CREATE INDEX t4b1 ON t4(b)
WHERE date(b) BETWEEN '2017-06-01' AND '2017-08-31';
CREATE TABLE mods(x);
INSERT INTO mods(x) VALUES
('+10 days'),
('-10 days'),
('+10 hours'),
('-10 hours'),
('+10 minutes'),
('-10 minutes'),
('+10 seconds'),
('-10 seconds'),
('+10 months'),
('-10 months'),
('+10 years'),
('-10 years'),
('start of month'),
('start of year'),
('start of day'),
('weekday 1'),
('unixepoch');
CREATE TABLE t5(y,m);
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<5)
INSERT INTO t5(y,m) SELECT julianday('2017-07-01')+c.x, mods.x FROM c, mods;
CREATE INDEX t5x1 on t5(y) WHERE datetime(y,m) IS NOT NULL;