A programming tool used for managing database content is a Database Management System (DBMS). This software facilitates the creation, manipulation, and administration of databases, providing a structured way to store, retrieve, and manage data. A DBMS offers important functionalities such as data modeling, query processing, and transaction management. Popular examples include MySQL, PostgreSQL, and Oracle Database. By using a DBMS, developers can ensure data integrity, reduce redundancy, and enhance overall data security.