Definitions for "Data Definition Language"
Keywords:  ddl, sql, schema, dbms, subset
A database schema is specified by a set of definitions expressed by a special language called a Data Definition Language.
One of four parts of a database management system (DBMS) used to define the structure of the database.
Or database design language, data design language. A language, usually a part of a database management system, that defines all attributes and properties of a database, especially record layouts, field definitions, key fields (and, sometimes, keying methodology), file locations, and storage strategy.