CREATE TABLE t1(a,b);
INSERT INTO t1 VALUES(123,'abc'),(234,'def'),(234,'ghi'),(345,'jkl');
CREATE TABLE t2(x,y);
INSERT INTO t2 VALUES(987,'zyx'),(654,'wvu'),(987,'rqp');
SELECT *, '|' FROM t1, t2 WHERE a=234 AND x=987 ORDER BY +b;
SELECT *, '|' FROM t1, t2 WHERE a=234 AND x=555;
SELECT *, '|' FROM t1 LEFT JOIN t2 ON a=234 AND x=555;
SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 ON a=234 AND x=555;
SELECT *, '|' FROM t1 LEFT JOIN t2 ON x=555 WHERE a=234;
SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 ON x=555 WHERE a=234;
SELECT *, '|' FROM t1 LEFT JOIN t2 WHERE a=234 AND x=555;
SELECT t1.*, t2.*, '|' FROM t2 RIGHT JOIN t1 WHERE a=234 AND x=555;
CREATE TABLE t3(e,f);
INSERT INTO t3 VALUES(123,654),(555,444),(234,987);
SELECT (SELECT count(*) FROM t1, t2 WHERE a=e AND x=f), e, f, '|'
FROM t3
ORDER BY rowid;
CREATE TABLE A(Name text);
CREATE TABLE Items(ItemName text , Name text);
INSERT INTO Items VALUES('Item1','Parent');
INSERT INTO Items VALUES('Item2','Parent');
CREATE TABLE B(Name text);
SELECT Items.ItemName
FROM Items
LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
SELECT Items.ItemName
FROM A
RIGHT JOIN Items ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
CREATE INDEX Items_x1 ON Items(ItemName,Name) WHERE ItemName = 'dummy';
SELECT Items.ItemName
FROM Items
LEFT JOIN A ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;
SELECT Items.ItemName
FROM A
RIGHT JOIN Items ON (A.Name = Items.ItemName and Items.ItemName = 'dummy')
LEFT JOIN B ON (B.Name = Items.ItemName)
WHERE Items.Name = 'Parent'
ORDER BY Items.ItemName;