Database server

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A database server is a computer program that provides database services to other computer programs or computers, as defined by the client-server model. The term may also refer to a computer dedicated to running such a program. Database management systems frequently provide database server functionality, and some DBMS's (e.g., MySQL) rely exclusively on the client-server model for database access.

Database Master servers are central and main locations of data while Database Slave servers are synchronized backups of the master acting as proxies.