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.
Because a public library stores books, we could also say that a library is a database of books. But strictly defined, databases are computer structures that save, organize, protect, and deliver data. A system that contains databases is called a database management system, or DBM. The typical diagram representation for a database is a cylinder. Types of Databases. The simplest form of databases is a text database. When data is organized in a text file in rows and columns, it can be used to store, organize, protect, and retrieve data. Saving a list of names in a file, starting with first name and followed by last name, would be a simple database.