Oracle OCM, MySQL OCP certified expert. Worked in a third-party maintenance company, managed an ORACLE technical service team of more than 60 people, and trained more than 30 ORACLE technical talents.With more than 10 years of experience in the database field, he is good at data architecture planning, database fault diagnosis, SQL tuning, and has the ability to write shell and python operation and maintenance automation scripts. Particularly good at the principle-level diagnosis and tuning of database kernels, with rich industry experience and technology accumulation, and the objects served include large operators, financial institutions, government agencies, and manufacturing customers in multiple industries.