Database Access Descriptor. A DAD is a named set of configuration values used for database access. A DAD specifies information such as the database name or the SQL*Net V2 service name, the ORACLE_HOME directory, and NLS configuration information such as language, sort type, and date language.
database access descriptor. Set of values that specify how WebDB connects to the Listener or some other type of database server to fulfill an HTTP request. The information in the DAD includes the user name (which also specifies the schema and the privileges), the user password, connect string, error log file, standard error message, and National Language Support (NLS) parameters.
Database Access Descriptor ( DAD) contains the information needed by products like Oracle Portal, WebDB and Oracle Internet Application Server to connect to an Oracle database. Information in a DAD includes: username, password and Net8 connect-string. One can create DADs from the Portal/ OAS ( Oracle Application Server) Manager web-page.