N

NAMES.DIRECTORY_PATH

An entry found in the sqlnet.ora file that defines the net service name search method hierarchy for a client.

Net Service Names

The name of an Oracle service on the network. This is the name the user enters when referring to an Oracle service.

network failure

A failure in the network connection between the client and the database; for example, a router reboot or a failure of a network card in the server.

NOARCHIVELOG

mode

A database mode in which redo log files are not written to an archive destination before they are overwritten. A database in NOARCHIVELOG mode can recover only from an instance failure.

n-tier architecture

A network architecture involving at least three computers, typically a client computer, a middle-tier computer, and a database server.