AMZN - 175

Author: datablazor

SQL/Amazon/Easy/175. Combine Two Tables.txt

@@ -0,0 +1,33 @@
+Problem: 175. Combine Two Tables
+
+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
+
+--------------------------------------------------------------------------------------------------------------------------------------
+Solution 1:
+
+SELECT p.FirstName, p.LastName, a.City, a.State FROM Person p
+LEFT JOIN Address AS a ON p.PersonId = a.PersonId;
+
+--------------------------------------------------------------------------------------------------------------------------------------