SQL Getting Started Tutorial: SQL Right JOIN right-hand

Source: Internet
Author: User
Tags database join

SQL Getting Started Tutorial: SQL Right JOIN right-hand

SQL Right JOIN keyword
The RIGHT join keyword returns all rows from the right table (table_name2), even if there are no matches in the left table (table_name1).

SQL syntax

SELECT column_name (s) from
table_name1 right
JOIN table_name2 on 
table_name1.column_name=table_ Name2.column_name
A: Some database join rights are called Right outer joins.

Correct SQL join for example
In the person table:

Address City
p_id LastName FirstName
1 Hansen Ola TIMOTEIVN 10 Sandnes
2 Svendson Tove BORGVN 23 Sandnes
3 Pettersen Kari STORGT 20 Stavanger

The "Orders" table:

o_id OrderNo p_id
1 77895 3
2 44678 3
3 22456 1
4 24562 1
5 34764 15

Now we want to list all the commands with the carrier-if any, from the above table.

We use the following SELECT statement:

SELECT Persons.lastname, Persons.firstname, Orders.orderno from
Persons right
JOIN Orders on
persons.p_id =orders.p_id ORDER BY

LastName FirstName OrderNo
Hansen Ola 22456
Hansen Ola 24562
Pettersen Kari 77895
Pettersen Kari 44678

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