What is full outer join SQL?

What is full outer join SQL?

An full outer join is a method of combining tables so that the result includes unmatched rows of both tables. If you are joining two tables and want the result set to include unmatched rows from both tables, use a FULL OUTER JOIN clause. The matching is based on the join condition.

What is left right and full outer join?

The main difference between the Left Join and Right Join lies in the inclusion of non-matched rows. Left outer join includes the unmatched rows from the table which is on the left of the join clause whereas a Right outer join includes the unmatched rows from the table which is on the right of the join clause.

What is right join in SQL?

The RIGHT JOIN keyword returns all records from the right table (table2), and the matching records from the left table (table1). The result is 0 records from the left side, if there is no match.

What is right outer join?

A RIGHT OUTER JOIN is one of the JOIN operations that allow you to specify a JOIN clause. It preserves the unmatched rows from the second (right) table, joining them with a NULL in the shape of the first (left) table. A LEFT OUTER JOIN B is equivalent to B RIGHT OUTER JOIN A, with the columns in a different order.

Is full join same as outer join?

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.

What is a right outer join?

A right outer join is a method of combining tables. The result includes unmatched rows from only the table that is specified after the RIGHT OUTER JOIN clause. If you are joining two tables and want the result set to include unmatched rows from only one table, use a LEFT OUTER JOIN clause or a RIGHT OUTER JOIN clause.

Is full outer join same as full join?

What is the role of a full join?

The SQL FULL JOIN combines the results of both left and right outer joins. The joined table will contain all records from both the tables and fill in NULLs for missing matches on either side.

Why do we use right join in SQL?

The RIGHT OUTER JOIN is used when you want to join records from tables, and you want to return all the rows from one table and show the other tables columns if there is a match else return NULL values.