Examples of excerpt in a Sentence. 1  The fiction that the magazine does publish is too often excerpted from novels or imminently forthcoming collections, making the magazine seem more a flack for publishers than a site of editorial strength and vision.
Summary: 1. DML is a grouping of computer languages used by computer programs to manipulate data in a database; DDL is a computer language used specifically to define data structures. 2. The most popular form of DML is SQL, and is comprised of various change statements; DDL mainly uses the CREATE command.
Database management systems. A database management system (DBMS) is software that organizes the storage of data. It controls the creation, maintenance, and the use of the database tables of an organization and its end users. It allows organizations to place control of organizationwide database development in the hands of Database Administrators (DBAs) and other specialist.