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.
A data definition language or data description language (DDL) is a syntax similar to a computer programming language for defining data structures, especially database schemas.inally, another kind of DDL sentence in SQL is one used to define referential integrity relationships, usually implemented as primary key and foreign key tags in some columns of the tables. These two statements can be included inside a CREATE TABLE or an ALTER TABLE sentence.