"To manage this database" means to handle or oversee the operations, maintenance, and organization of a specific collection of information stored electronically. Full definition
Other duties and responsibilities of the casino host include managing database of clients, and providing periodic reports to the marketing manager of the casino, as hinted earlier. (jobdescriptionandresumeexamples.com)
How could a company in Your Response's position (managing a database for a client) protect its interests? (slaw.ca)
On any given day, executive assistants may have to create correspondence, presentations, reports, and spreadsheets as well as manage databases. (cvtips.com)