Week 4 Written Assignment Stored Procedures as a Security Measure

In our readings we have learned the importance of connections and the use of stored procedures and functions.  For this assignment we will  look at stored procedure and function methods related to securing connections and data in the database.

Note: Don’t forget your Oracle 11g documentation resource for the how to examples.

For this assignment you are required to do BOTH Part A and Part B

Part A

Submit short answers that discuss the following questions:

1. What are the advantages of using stored procedures and functions in Oracle?
2. Oracle automatically tracks all object interdependencies for every PL/SQL stored object. What does this include? When does Oracle automatically recompile a stored procedure?
3. What is gained when using stored procedures in a client/server environment? What is the difference between stored procedures and function? When you create a procedure or function, you may define parameters. What types of parameters can be declared?

Lab Password Policy

Your task is 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.