General Function Comprehensive Challenge

Introduction

In this project, you will learn how to access MySQL, import data, and query employee information using built-in MySQL functions.

👀 Preview

MariaDB [personnel]> SOURCE /home/labex/project/answer.sql;
+------------------------------------------+---------------+----------------+
| Name                                     | Annual Income | Current User   |
+------------------------------------------+---------------+----------------+
| bc70be7f38046e64dd779f276ce4a20f99153f26 | 800.000       | root@localhost |
| 6e1cae96112fe249dc0fb4f9a004c9dc04315608 | 1,900.000     | root@localhost |
| 7c7f32425fa076caeed971f5549c82ffa88fd0eb | 1,750.000     | root@localhost |
| a1787353201302d65c744486c1e940709fee0eff | 2,975.000     | root@localhost |
| f3b9b87a2f377c006e935f32dd25ea55ebf7f551 | 2,650.000     | root@localhost |
| 7cde55b3a6e9cf610db200b6b9cc9b5adca1657f | 2,850.000     | root@localhost |
| 4f90e103facadd0787d7a6828f096f6e66595a47 | 2,450.000     | root@localhost |
| 7634fdc80aa4027cfd5e966abc1b6b4b4ea19fbe | 3,000.000     | root@localhost |
| 50b8a339f82ab9ce6c55bf8ea10dad8513e9d142 | 5,000.000     | root@localhost |
| e043e3d3ebddafaa5ed97f7dcc4d236286f8ad4a | 1,500.000     | root@localhost |
| 2d2eb27e1db8836e44cd4e94f58b89728331e8de | 1,100.000     | root@localhost |
| 6afc44af3cbdbb6718e8da8715a1956b895dc5d2 | 950.000       | root@localhost |
| 7e5b07d8bbb5e0a55b5d428476d4691b3ee97b4a | 3,000.000     | root@localhost |
| 25d5ae3b0e0dac511ba94e337b88e0887538b31f | 1,300.000     | root@localhost |
+------------------------------------------+---------------+----------------+
14 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 data from a SQL file into the MySQL database
• How to query the names and annual income of employees from the emp table
• How to encrypt employee names using the SHA function
• How to format the annual income with 3 decimal places
• How to display the current database account information

🏆 Achievements

After completing this project, you will be able to:

• Confidently access and manage a MySQL database using the command line
• Perform data import and basic data querying operations
• Apply built-in MySQL functions to manipulate and format data
• Understand the importance of data security and encryption
• Demonstrate your ability to work with MySQL databases and SQL queries