https://github.com/lesiaukr/goit-rdb-hw-03

Master's degree. Relational databases: downloading data | DQL commands
https://github.com/lesiaukr/goit-rdb-hw-03

dql-commands goit-rbd-hw-03 rbd sql workbanch

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Master's degree. Relational databases: downloading data | DQL commands

• Host: GitHub
• URL: https://github.com/lesiaukr/goit-rdb-hw-03
• Owner: LesiaUKR
• Created: 2024-03-24T14:56:59.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2024-03-24T16:32:57.000Z (about 1 year ago)
• Last Synced: 2025-01-29T23:16:27.897Z (4 months ago)
• Topics: dql-commands, goit-rbd-hw-03, rbd, sql, workbanch
• Homepage:
• Size: 938 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# goit-rdb-hw-03

1. Write an SQL command to:

- Select all columns (using wildcard "\*") from the "products" table.

  ![task 1.1 result](./src/task_1.1.jpg)

- Select only the columns "name" and "phone" from the "shippers" table.

  Verify its correctness in MySQL Workbench.

  ![task 1.1 result](./src/task_1.2.jpg)

2. Write an SQL command to find the average, maximum, and minimum value of the "price" column in the "products" table. Verify its correctness in MySQL Workbench.

   ![task 2 result](./src/task_2.jpg)

3. Write an SQL command to select unique values of the columns "category_id" and "price". Order the output by descending "price" values and select only 10 rows. Verify its correctness in MySQL Workbench.

   ![task 3 result](./src/task_3.jpg)

4. Write an SQL command to find the number of products (rows) that have prices within the range from 20 to 100. Verify its correctness in MySQL Workbench.

   ![task 4 result](./src/task_4.jpg)

5. Write an SQL command to find the number of products (rows) and the average price (price) for each supplier (supplier_id). Verify its correctness in MySQL Workbench.

   ![task 5 result](./src/task_5.jpg)