Fork, Commit, Merge - Hard Issue (SQL)

[nikohoffren]

Fork, Commit, Merge - Hard Issue (SQL)

Multi-table SQL Exercises: Querying SELLER, STOCKS, and PRODUCT Data

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Issue created by Shree-77.

How to Get Started

Navigate to the tasks/sql/hard directory from the root of your project.
Then open the displayItems.sql file and start implementing your solution!

Description:

Consider the following relational database schema:

SELLER (S_id, Name, Bank_acc_no, Email, Phone)
STOCKS (S_id, Prod_id, S_Date)
PRODUCT (Prod_id, Prod_name, Description, Price, Expiry_date)

Create the Following Tables:

CREATE TABLE SELLER (
    -- TODO: Add all the requested fields (S_id, Name, Bank_acc_no, Email, Phone)
);

CREATE TABLE STOCKS (
    -- TODO: Add all the requested fields (S_id, Prod_id, S_Date)
);

CREATE TABLE PRODUCT (
    -- TODO: Add all the requested fields (Prod_id, Prod_name, Description, Price, Expiry_date)
);

Insert values into the SELLER table:

INSERT INTO SELLER (S_id, Name, Bank_acc_no, Email, Phone)
VALUES
    (1, 'John Doe', '1234567890', 'johndoe@email.com', '555-123-4567'),
    (2, 'Jane Smith', '9876543210', 'janesmith@email.com', '555-987-6543');

Insert values into the STOCKS table:

INSERT INTO STOCKS (S_id, Prod_id, S_Date)
VALUES
    (1, 101, '2023-01-15'),
    (1, 102, '2023-02-20'),
    (2, 103, '2023-03-10');

Insert values into the PRODUCT table:

INSERT INTO PRODUCT (Prod_id, Prod_name, Description, Price, Expiry_date)
VALUES
    (101, 'Product A', 'Description for Product A', 25.99, '2023-12-31'),
    (102, 'Product B', 'Description for Product B', 19.99, '2023-11-30'),
    (103, 'Product C', 'Description for Product C', 39.99, '2023-10-15');

Display the following :

(a) Display name of the sellers and their bank account number who stocked at least 24 different products with price higher than 1000 rupees in the last one year.

(b) Use nested query to display name of the sellers and their email address; who have in stock products with expiry date past today’s date.

(c) Display the name of the products that are in stock by at least one seller and also those that are not in stock by any of the sellers.

(d) Use join query to display name of the sellers and name of the products stocked by them during March 23, 2020 and June 30, 2020.

(e) Display name of sellers who have in stock maximum number of different products and minimum number of different products.

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For this issue, you need to have sqlite installed to your local machine.
Check out README.md for more instructions of how to install sqlite and how to make a pull request.

Feel free to ask any questions here if you have some problems!

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