| Subject | English | Finnish |
| IT | data definition language | kannanmäärityskieli |
| IT | data definition language | tiedonmäärityskieli |
| 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) |
| IT | external data definition language | ulkoinen tiedonmäärityskieli |