Combine Two Tables
Question
Table: Person
+-------------+---------+
| Column Name | Type |
+-------------+---------+
| PersonId | int |
| FirstName | varchar |
| LastName | varchar |
+-------------+---------+
PersonId is the primary key column for this table. Table: Address
+-------------+---------+
| Column Name | Type |
+-------------+---------+
| AddressId | int |
| PersonId | int |
| City | varchar |
| State | varchar |
+-------------+---------+
AddressId is the primary key column for this table.
Write a SQL query for a report that provides the following information for each person in the Person table, regardless if there is an address for each of those people:
FirstName, LastName, City, State
Tags
- LEFT JOIN
Thought
Use the left join here because it requires to print all the results no matter whether there is an address.
Code
-- Write your MySQL query statement below
SELECT p.FirstName, p.LastName, a.City, a.State
FROM Person AS p
LEFT JOIN Address AS a ON a.PersonId = p.PersonId;