SQL Full Join
Returns matching in either table.
SQL FULL OUTER JOIN Keyword
The FULL OUTER JOIN keyword returns all records when there is a match in left (table1) or right (table2) table records.
Tip: FULL OUTER JOIN and FULL JOIN are the same.
Syntax
SELECT column_name(s)
FROM table1
FULL OUTER JOIN table2
ON table1.column_name = table2.column_name
WHERE condition;