decibels with respect to a dipole (basic antenna element)

A DataBase Driver for DBI. The DBD provides the connection between a particular database server product (e.g. Oracle) and the abstract interface. To change database products (e.g. from mysql to Oracle), one simply uses a different DBD.

Database Description

ancing efinition. Where individual calls can be broken into their component parts, so that a call can be danced from any position on the floor, including dancing a call from a different starting position.

Data Base Definition. A definition of the data to be stored and reported, the files in which the data are to be stored and the transactions used to load data to these files.

See Data Base Definition.