CROSS JOIN

A cross join is a type of join that returns the Cartesian product of rows from the tables in the join. In other words, it combines each row from the first table with each row from the second table.

1. What is cross join with example?
2. What is cross join in SQL?
3. What is cross join vs full join?
4. What is difference between cross join and self join?

What is cross join with example?

The CROSS JOIN query in SQL is used to generate all combinations of records in two tables. For example, you have two columns: size and color, and you need a result set to display all the possible paired combinations of those—that's where the CROSS JOIN will come in handy.

What is cross join in SQL?

SQL CROSS JOIN Keyword

The CROSS JOIN keyword returns all records from both tables (table1 and table2).

What is cross join vs full join?

A CROSS JOIN produces a cartesian product between the two tables, returning all possible combinations of all rows. It has no ON clause because you're just joining everything to everything. A FULL OUTER JOIN is a combination of a LEFT OUTER and RIGHT OUTER JOIN .

What is difference between cross join and self join?

Inner join or Left join is used for self join to avoid errors. 2. Cross Join : Cross join allows us to join each and every row of both the tables.