yevheniidatsenko / goit-rdb-hw-07

✴️ RDB Hometask - SQL course

SQL Tasks

This document outlines the instructions for completing five SQL tasks:

Task 1: Extract Year, Month, and Day from Date Attribute

1. Write an SQL query that extracts the year, month, and day from the date attribute in the orders table.
2. Display the extracted values as three separate attributes alongside the id attribute and the original date attribute (resulting in a total of five attributes).

Task 2: Add One Day to Date Attribute

1. Write an SQL query that adds one day to the date attribute in the orders table.
2. Display the id attribute, the original date attribute, and the result of adding one day.

Task 3: Display Date as Timestamp in Seconds

1. Write an SQL query that displays the date attribute in the orders table as the number of seconds since the epoch (timestamp).
2. To achieve this, identify and apply the appropriate function.
3. Display the id attribute, the original date attribute, and the result of the function.

Task 4: Count Orders within a Specific Date Range

1. Write an SQL query that counts the number of rows in the orders table where the date attribute falls within the range between 1996-07-10 00:00:00 and 1996-10-08 00:00:00.

Task 5: Create JSON Objects from Order Data

1. Write an SQL query that displays the id attribute, the date attribute, and a JSON object in the format {"id": , "date": } for each row in the orders table.
2. Utilize a function to create the JSON object.