Who is DBA ?

Who is the DBA (Database Administrator) ?

the information technician responsible for directing and performing all activities related to maintaining a successful database environment. A DBA makes sure an organization's databases and related applications operate functionally and efficiently.

What is happened if there is no DBA in a company ? 

The application and system outages, downtime, and slowdowns will inevitably occur. These kinds of problems result in business outages that can negatively affect revenue, customer experiences and business reputation.

What the role of DBA ? 

The role may include capacity planning, installation, configuration, database design, migration, performance monitoring, security, troubleshooting, as well as backup and data recovery.