stored procedures as a security measure

I need to develop a single SQL script that will perform all the following tasks of enforcing password complexity:

1. Connect to SYS user.

2. Create a password complexity function (named as “is481_password”) to enforce the following requirements so that the password

  • Is at least six (6) characters long
  • Differs from the user name
  • Has at least one alpha, one numeric, and one punctuation mark character
  • Is not simple or obvious, such as welcome, account , oracle, database , or user.
  • Differs from the previous password by at least 3 characters

Please note the exact spelling on the function name is REQIRED.

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