| Subject | English | Czech |
| comp., MS | data definition | definice dat (The attributes, properties, and objects in a database) |
| comp., MS | data definition language | DDL (A language that defines all attributes and properties of a database, especially record layouts, field definitions, key fields, file locations, and storage strategy) |
| comp., MS | data-definition query | definiční dotaz (An SQL-specific query that contains data definition language (DDL) statements. These statements allow you to create or alter objects in the database) |