Both these joins will give me the same results:
SELECT * FROM table JOIN otherTable ON table.ID = otherTable.FK
vs
SELECT * FROM table INNER JOIN otherTable ON table.ID = otherTable.FK
Is there any difference between the statements in performance or otherwise?
Does it differ between different SQL implementations?
Difference between JOIN and INNER JOINJOIN returns all rows from tables where the key record of one table is equal to the key records of another table. The INNER JOIN selects all rows from both participating tables as long as there is a match between the columns.
'Inner join' is better, although it is equivalent to 'join' in performance as well as function.
What is the difference between INNER JOIN and RIGHT JOIN? Inner join returns only the matching rows between both the tables, non-matching rows are eliminated. Right Join or Right Outer Join returns only the matching rows between both the tables, plus non-matching rows from the right table.
The major difference between inner and outer joins is that inner joins result in the intersection of two tables, whereas outer joins result in the union of two tables.
They are functionally equivalent, but INNER JOIN
can be a bit clearer to read, especially if the query has other join types (i.e. LEFT
or RIGHT
or CROSS
) included in it.
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