SQL Taskbook Level 3.2
Given a table:
| id | name | salary | city | registration_date |
| 1 | Aaron | 4300.00 | New-York | 2023-02-10 |
| 2 | Marina | 2000.00 | Minsk | 2022-12-10 |
| 3 | Max | 1500.00 | Kyiv | 2020-05-30 |
| 4 | Andrew | 1500.00 | Gdansk | 2023-08-31 |
| 5 | Andrew | 900.00 | Berlin | 2023-08-31 |
Solve the following tasks for it:
Задание 1
List users who have the same registration date (day and month) and indicate the number of such users.
Задание 2
Find users whose names appear more than once in the table and report the number of unique names.
Задание 3
Display the names of users whose name length exceeds the average length.
Задание 4
Find users who registered earlier than all users and provide their names and registration date.