I keep forgetting so I’m writing it down here.
Inner Join
Also called Join. This join returns the rows present in both the left table and right table only if there is a match. Otherwise, it returns zero records.
Full Outer Join
Also called as Full Join. This join returns all the rows present in both the left table and the right table.
Left Outer join
Or called as Left Join. This join returns all the rows present in the left table and matching rows from the right table.
Right Outer Join
Also called as Right Join. This join returns matching rows from the left table, and all the rows present in the right table.