Chengda Zhang has worked as a senior DBA, department manager, and project manager in a third-party maintenance company, and has more than 10 years of experience in database maintenance. The service targets include large operators, large financial institutions, government agencies, medical institutions, etc., and have rich experience in these industries.
He is good at database fault diagnosis and processing, large database migration, performance tuning, disaster recovery, BBED, etc.
He is certified in Oracle 11g OCP, 19c OCP, 12c OCM, and MySQL OCP, and is a CSDN columnist.
His blog is https://blog.csdn.net/DBDeep?spm=1000.2115.3001.5343