Right Outer Join Oracle - oracle tutorial - sql tutorial
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What is Right outer join in Oracle ?
- Right outer join returns all rows from the RIGHT-hand table specified in the ON condition and only those rows from the other table where the joined fields are equal (join condition is met).
Syntax :
SELECT columns
FROM table1
RIGHT [OUTER] JOIN table2
ON table1.column = table2.column;
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Example :
SELECT orders.orderid, orders.Customer_Name, wikitechy_employee.name
FROM wikitechy_employee
RIGHT OUTER JOIN orders
ON wikitechy_employee.id = orders.id;
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Sample Database:
- We have a table called wikitechy_employee with four fields (id, name, position, and city). It contains the following data:
- We have another table called orders with three fields (id, customer_name, and orderid).
Right Outer Join:
- The above oracle sql query would return all rows from the orders table and only those rows from the wikitechy_employee table where the joined fields are equal.
- If a id value in the orders table does not exist in the wikitechy_employee table, all fields in the wikitechy_employee table will display as <null>in the result set.
Oracle ALL Joins
Oracle Join Query - Inner Join Query - Left Outer Join Query - Right Outer Join Query - Full Outer Join Query