Create-Users Development Instruction Plan

We need to create a script that will create multiple users by taking their details as input and keeping the constraints in consideration.

Parameters to be considered.

1. The information attribute of a user will be Name, Age, Sex, Email, Username and Password.
2. Email and Username must be unique.
3. Password must contain at least 1 uppercase, 1 lowercase, 1 special character and 1 digit. The minimum length of alphanumeric passwords should be 8.
4. A validation must be implemented to prevent repitition of Email and Username. It should ask the user input repeatedly until found unique.
5. Details of the each user must be stored in the database.