Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A Data Control Language (DCL) is a computer language and a subset of SQL, used to control access to data in a database. A programming language is an artificial language designed to express computations that can be performed by a machine, particularly a computer. Programming languages can be used to create programs that control the behavior of a machine, to express algorithms precisely, or as a mode of human communication. Many programming languages have some form of written specification of their syntax (form) and semantics (meaning). Some languages are defined by a specification document. For example, the C programming language is specified by an ISO Standard. Other languages, such as Perl, have a dominant implementation that is used as a reference.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.