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The right join or right outer join is a reversed version of the left join. The right join makes a result set that contains all rows from the right table with the matching rows from the left table. If there is no match, the left side will have nulls.
What is result difference between: RIGHT JOIN and RIGHT OUTER JOIN. No difference. LEFT JOIN and LEFT OUTER JOIN ? No difference. Simply put, the OUTER keyword is optional. You can include it or omit it without affecting the resultset.
5 Οκτ 2018 · Just like LEFT JOIN, the RIGHT JOIN or the RIGHT OUTER JOIN returns all the rows from the right table and the corresponding rows from the left table. Lastly, the FULL JOIN or the FULL OUTER JOIN returns all the rows when there is a match in either left or right table.
18 Σεπ 1996 · Different Types of SQL JOINs. Here are the different types of the JOINs in SQL: (INNER) JOIN: Returns records that have matching values in both tables. LEFT (OUTER) JOIN: Returns all records from the left table, and the matched records from the right table.
Whenever multiple tables exist in the FROM clause, Oracle Database performs a join. A join condition compares two row sources using an expression. The join condition defines the relationship between the tables.
To execute a join of three or more tables, Oracle first joins two of the tables based on the join conditions comparing their columns and then joins the result to another table based on join conditions containing columns of the joined tables and the new table. Oracle continues this process until all tables are joined into the result.
Right outer join - return all rows from outer (right) table. select lt.join_column left_join_c, left_c2, left_c3, rt.join_column right_join_c, right_c2, right_c3 from left_t lt right join right_t rt on lt.join_column = rt.join_column order by left_c3, right_c3
