langage de description de données(A language that defines all attributes and properties of a database, especially record layouts, field definitions, key fields, file locations, and storage strategy); langage de description de données(A language that defines all attributes and properties of a database, especially record layouts, field definitions, key fields, file locations, and storage strategy)
data description language A language that defines all attributes and properties of a database, especially record layouts, field definitions, key fields, file locations, and storage strategy
