MySQL FULL JOIN not working but RIGHT and LEFT join works

Question

This is driving me nuts. I have two tables that I am attempting to preform a join on, usersXstats and usersXstats_alltime.

Both tables have the same columns: id, us

Answer 1

SELECT Person1.Firstname, Person2.State
FROM Person1
left JOIN Person2
ON Person1.PersonID=Person2.PersonID
UNION
SELECT Person1.Firstname, Person2.State
FROM Person1
right JOIN Person2
ON Person1.PersonID=Person2.PersonID;

is working superbly.

Answer 2

Take a look at this How to simulate FULL OUTER JOIN in MySQL. It may helps.

Answer 3

MySQL doesn't support FULL JOIN

http://en.wikipedia.org/wiki/Join_%28SQL%29#Full_outer_join

Answer 4

FULL OUTER JOIN won't support in mysql.

You can emulate FULL OUTER JOIN using UNION (from MySQL 4.0.0 on):

with two tables usersXstats,usersXstats_alltime

SELECT * FROM usersXstats
LEFT JOIN usersXstats_alltime ON usersXstats.userId= usersXstats_alltime.userId
UNION
SELECT * FROM usersXstats
RIGHT JOIN usersXstats_alltime ON usersXstats.statId= usersXstats_alltime.statId