| Subject | English | Welsh |
| comp., MS | database availability group | grŵp argaeledd cronfa ddata (A group of up to 16 Mailbox servers that host a set of databases and provide automatic database-level recovery from failures that affect individual servers or databases) |
| comp., MS | database connection | cyswllt cronfa ddata (A connection that specifies the name, type, location, and, optionally, other information about a database file or server) |
| comp., MS | database management system | system rheoli cronfa ddata (A layer of software between the physical database and the user. The DBMS manages all access to the database) |
| comp., MS | database manager | rheolwr cronfa ddata (A layer of software between the physical database and the user. The DBMS manages all access to the database) |
| comp., MS | database snapshot | ciplun cronfa ddata (A read-only, static view of a database at the moment of snapshot creation) |