Oracle Tutrorial - Value-Based Auditing

Summary

In this tutorial, the presenter demonstrates how to implement value-based auditing in Oracle databases. The process begins with visiting a specific website and selecting the relevant Oracle 11g tab. The presenter explains how to create an audit table to store changes made to the EMP table, including key details like username, change date, and new salary. A trigger is then established to log changes whenever updates occur. By updating an employee's salary as an example, viewers learn how to commit changes and check the audit records, effectively illustrating the auditing process in action.

Takeaways

• 😀 Value-based auditing in Oracle helps track updates, inserts, and deletes without computing changed values.
• 🔗 To get started, visit the official website and navigate to the Oracle 11g tab for auditing options.
• 🛠️ The first step in value-based auditing is to create a dedicated table for storing audit information.
• 📜 The audit table includes columns for OS username, change date, IP address, and new salary.
• 🔍 A trigger is required to automatically insert audit records when changes are made to the relevant tables.
• 👨‍💻 Executing a SELECT command on the audit table initially shows no records before any changes are committed.
• 💼 An example update is provided, demonstrating how to change an employee's salary in the EMP table.
• 📝 Committing changes is crucial; it triggers the insertion of audit records into the audit table.
• 📈 The trigger ensures that only relevant changes are recorded, capturing old and new salary values.
• 🎉 The tutorial concludes with a summary of the process and an invitation to subscribe for more content.

Q & A

What is the main topic of the video?

The video demonstrates how to create value-based auditing in Oracle databases.

Where can viewers find the resources mentioned in the video?

Viewers can visit the official website www.ptechnology.com and navigate to the Oracle 11g tab.

What does Oracle database auditing record?

Oracle database auditing records updates, inserts, and deletes that occur in audited objects but does not compute the changed values.

What is the first step in creating value-based auditing?

The first step is to create a table designed to store audit information.

What SQL command is used to create the auditing table?

The video provides a specific SQL command that can be copied and pasted into the SQL prompt to create the auditing table.

What are the columns defined in the auditing table?

The auditing table includes columns for OS username, change date, IP address, and new salary.

What role does the trigger play in value-based auditing?

The trigger automatically inserts audit information into the audit table whenever a record is updated, inserted, or deleted in the specified table.

How does the user commit changes to ensure they are recorded?

The user needs to perform a commit after making changes to the database to save the data in the audit file.

What happens if the old salary does not match the new salary in the trigger?

If the old salary does not match the new salary, the trigger will automatically insert the relevant information into the audit table.

What does the video suggest about understanding value-based auditing?

The video aims to provide an informative overview, helping viewers understand the process and functionality of value-based auditing in Oracle databases.