| Subject | English | Welsh |
| comp., MS | authentication database | cronfa ddata dilysu (A database on a server that matches user names to passwords) |
| comp., MS | component settings database | cronfa ddata gosodiadau'r gydran (A database that stores service information for each portal site in a deployment) |
| comp., MS | configuration database | cronfa ddata ffurfweddu (The Microsoft SQL Server, MSDE, or Windows Internal database that contains the configuration information that applies across all servers in a deployment of SharePoint Products and Technologies, such as Web application information) |
| comp., MS | content database | cronfa ddata cynnwys (The Microsoft SQL Server or WMSDE database that contains the content for one or more SharePoint sites) |
| 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) |
| comp., MS | logging database | cronfa ddata logio (The Microsoft SQL Server, MSDE, or WMSDE database that stores health monitoring and usage data temporarily, and can be used for reporting and diagnostics) |
| comp., MS | mailbox database | cronfa ddata blwch post (A database for storing mailboxes in Exchange Server. The mailbox database manages the data in mailboxes, tracks deleted messages and mailbox sizes, and assists in message transfers. A mailbox database is stored as an Exchange database (.edb) file) |
| comp., MS | search database | cronfa ddata chwilio (A database that stores search-related information, including stored procedures and tables that are used for crawler data, document metadata, and administration information) |
| comp., MS | secure store database | cronfa ddata storfa ddiogel (The database used by the Secure Store Service to store credentials) |
| comp., MS | social database | cronfa ddata gymdeithasol (A database that is used to store social tagging information for a user, i.e. Social Comment or Social Tag or Social Rating) |
| comp., MS | Windows Internal Database | Cronfa Ddata Fewnol Windows, WID (A relational data store that's included in Windows and is used by several Windows Services) |