175. Combine Two Tables LeetCode Solution

In this guide, you will get 175. Combine Two Tables LeetCode Solution with the best time and space complexity. The solution to Combine Two Tables problem is provided in various programming languages like C++, Java, and Python. This will be helpful for you if you are preparing for placements, hackathons, interviews, or practice purposes. The solutions provided here are very easy to follow and include detailed explanations.

Table of Contents

1. Problem Statement
2. Complexity Analysis
3. Combine Two Tables solution in C++
4. Combine Two Tables solution in Java
5. Combine Two Tables solution in Python
6. Additional Resources

Problem Statement of Combine Two Tables

Table: Person

+————-+———+
| Column Name | Type |
+————-+———+
| personId | int |
| lastName | varchar |
| firstName | varchar |
+————-+———+
personId is the primary key (column with unique values) for this table.
This table contains information about the ID of some persons and their first and last names.

Table: Address

+————-+———+
| Column Name | Type |
+————-+———+
| addressId | int |
| personId | int |
| city | varchar |
| state | varchar |
+————-+———+
addressId is the primary key (column with unique values) for this table.
Each row of this table contains information about the city and state of one person with ID = PersonId.

Write a solution to report the first name, last name, city, and state of each person in the Person table. If the address of a personId is not present in the Address table, report null instead.
Return the result table in any order.
The result format is in the following example.

Example not found

Constraints not found

Complexity Analysis

• Time Complexity: Google AdSense
• Space Complexity: Google Analytics

175. Combine Two Tables LeetCode Solution in C++

SELECT
  Person.firstName,
  Person.lastName,
  Address.city,
  Address.state
FROM Person
LEFT JOIN Address
  USING (personId);
/* code provided by PROGIEZ */

175. Combine Two Tables LeetCode Solution in Java

N/A
// code provided by PROGIEZ

175. Combine Two Tables LeetCode Solution in Python

N/A
 # code by PROGIEZ

Additional Resources

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