Oracle Data Redaction Key Features in Oracle 23ai

🛡️ Key Features in Oracle 23ai

1. Diverse Redaction Methods:

   • Full Redaction: Replaces entire data entries with default values (e.g., zeros for numbers, spaces for text).

   • Partial Redaction: Masks parts of data, such as displaying only the last four digits of a credit card number.

   • Regular Expression Redaction: Utilizes patterns to identify and redact data, ideal for formats like email addresses.

   • Random Redaction: Substitutes data with random values, maintaining data type consistency.

   • Nullify Redaction: Replaces data with null values, effectively hiding it.

   • No Redaction: Allows for testing policies without applying redaction. 

2. Enhanced SQL Support:

   • Redacted columns can now be used in SQL expressions, including CONCAT, SUM, TRIM, MIN, and MAX, within views and inline views.

   • Support for GROUP BY and DISTINCT clauses on redacted columns, facilitating complex queries without compromising data security.

   • Set operations involving redacted columns are now supported, ensuring consistent redaction across combined query results. 

3. Performance Optimizations:

   • Policy expressions evaluating to TRUE (e.g., 1=1) are optimized, reducing unnecessary evaluations and enhancing query performance. 

4. Integration with Database Features:

   • Redaction policies can be applied to columns involved in function-based indexes and extended statistics, allowing for comprehensive data protection without hindering database performance.