# 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. ## ð Preview ```mysql 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) ``` ## ðŊ 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 ## ð 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
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