's job
Yangjie's job as part of DB102S involves configuring, designing, and administering databases. He is responsible for setting up, configuring, and troubleshooting databases as well as maintaining data integrity and accuracy. He is also responsible for ensuring the security and performance of the database environment. He is expected to monitor and track database performance, and make recommendations to improve the efficiency of the system. Yangjie is also responsible for developing, maintaining, and executing SQL commands, procedures and views. Lastly, he must develop strategies for backup and recovery.