180606_Combine

作者: 郑磊_4135 | 来源:发表于2018-06-06 09:53 被阅读0次

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

SELECT p.FirstName, p.LastName, a.City, a.State
FROM Person p LEFT JOIN Address a
ON p.PersonId = a.PersonId;

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