I have over five years of experience in Oracle Database administration, including tasks such as database installation, configuration, and performance tuning. I am proficient in using Oracle Enterprise Manager and SQL Developer to manage and monitor database instances. My experience also includes backup and recovery strategies, ensuring data integrity and high availability.

When faced with performance issues, I first analyze the database using tools like AWR reports and SQL Trace to identify bottlenecks. I then optimize SQL queries, adjust database parameters, and implement indexing strategies to improve performance. Additionally, I ensure that the database is properly sized and that resources are allocated efficiently.

I have extensive experience with Oracle PL/SQL, having developed and maintained complex stored procedures, functions, and triggers. I am adept at writing efficient and scalable code, ensuring that it adheres to best practices and standards. My experience also includes debugging and optimizing PL/SQL code for performance.

I implement robust security measures in Oracle environments by enforcing role-based access control, encrypting sensitive data, and regularly auditing user activities. I also ensure that patches and updates are applied promptly to protect against vulnerabilities. Additionally, I conduct regular security assessments and training to maintain a secure database environment.

One challenging project involved migrating a legacy database to Oracle 19c while ensuring zero downtime for the users. This required meticulous planning, including data validation, performance testing, and a phased migration approach. I successfully led the project, ensuring that all data was accurately migrated and that the new system met performance expectations.