FULL OUTER JOIN with SQLite
SQLite only has INNER and LEFT JOIN.
Is there a way to do a FULL OUTER JOIN with SQLite?
Yes, see the example on Wikipedia.
SELECT employee.*, department.*
FROM employee
LEFT JOIN department
ON employee.DepartmentID = department.DepartmentID
UNION ALL
SELECT employee.*, department.*
FROM department
LEFT JOIN employee
ON employee.DepartmentID = department.DepartmentID
WHERE employee.DepartmentID IS NULL
Following Jonathan Leffler's comment in Mark Byers' answer, here's an alternative answer which uses UNION
instead of UNION ALL
:
SELECT * FROM table_name_1 LEFT OUTER JOIN table_name_2 ON id_1 = id_2
UNION
SELECT * FROM table_name_2 LEFT OUTER JOIN table_name_1 ON id_1 = id_2
Edit: The original source for the SQLite example above and from where further SQLite examples could be found was http://sqlite.awardspace.info/syntax/sqlitepg06.htm but it seems as though that site is now returning a 404 Not Found error.