Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A database engine (or "storage engine") is the underlying software component that a database management system (DBMS) uses to create, read, update and delete (CRUD) data from a database. One may command the database engine via the DBMS's own user interface, and sometimes through a network port. A Database Management System (DBMS) is a set of computer programs that controls the creation, maintenance, and the use of a database. It allows organizations to place control of database development in the hands of database administrators (DBAs) and other specialists.

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