Query City Information for Specified IDs

Introduction

In this project, you will learn how to query and retrieve information from a MySQL database. Specifically, you will learn how to access the MySQL database, import a pre-existing database, and execute a SQL query to retrieve information about cities based on their IDs.

👀 Preview

MariaDB [world]> SOURCE /home/labex/project/getTen.sql;
+----+----------------+-------------+---------------+------------+
| ID | Name           | CountryCode | District      | Population |
+----+----------------+-------------+---------------+------------+
|  1 | Kabul          | AFG         | Kabol         |    1780000 |
|  2 | Qandahar       | AFG         | Qandahar      |     237500 |
|  3 | Herat          | AFG         | Herat         |     186800 |
|  4 | Mazar-e-Sharif | AFG         | Balkh         |     127800 |
|  5 | Amsterdam      | NLD         | Noord-Holland |     731200 |
|  6 | Rotterdam      | NLD         | Zuid-Holland  |     593321 |
|  7 | Haag           | NLD         | Zuid-Holland  |     440900 |
|  8 | Utrecht        | NLD         | Utrecht       |     234323 |
|  9 | Eindhoven      | NLD         | Noord-Brabant |     201843 |
| 10 | Tilburg        | NLD         | Noord-Brabant |     193238 |
+----+----------------+-------------+---------------+------------+
10 rows in set (0.000 sec)

🎯 Tasks

In this project, you will learn:

• How to access MySQL using the sudo command without a password
• How to import a pre-existing SQL database into MySQL
• How to write and execute a SQL query to retrieve city information based on ID

🏆 Achievements

After completing this project, you will be able to:

• Understand how to access and work with a MySQL database
• Write SQL queries to retrieve specific data from a database
• Apply your knowledge of SQL to solve real-world data retrieval problems