Cross Join
SQL CROSS JOIN
The CROSS JOIN returns the Cartesian product of the tables involved in the join.
SQL Cross Join syntax
SELECT column_name(s)
FROM A_table CROSS JOIN B_table;
Test1
| ID | TITLE |
|---|---|
| 1 | aaa |
| 2 | bbb |
| 3 | ccc |
Test2
| ID | TITLE |
|---|---|
| 1 | ttt |
| 2 | qqq |
Example
SELECT * FROM Test1 CROSS JOIN Test2;
Results
| ID | TITLE | ID | TITLE |
|---|---|---|---|
| 1 | aaa | 1 | ttt |
| 2 | bbb | 1 | ttt |
| 3 | ccc | 1 | ttt |
| 1 | aaa | 2 | qqq |
| 2 | bbb | 2 | qqq |
| 3 | ccc | 2 | qqq |
