More than 10 years experience in database area, including Oracle Database, MySQL, PostgreSQL and Other database.
Focused on Oracle Database technology for over 10 years, maintained multiple Oracle Databases across multiple versions for multiple customers, expertise in administration, performance tunning, troubleshooting, RAC, Data Guard, backup and recovery and so on.

Oracle Certification：
Oracle Database 12c Administrator Certified Master
Oracle Database Administration 2019 Certified Professional Certification