SP2-00884
Connection to database "string" is not allowed
Cause
An attempt was made to connect to a database that SQL*Plus has not been configured to allow connections to.
Action
If this occurred with the CONNECT command in iSQL*Plus, the "iSQLPlusConnectIdList" configuration parameter in the isqlplus.conf file does not include the connection identifier used. For example, when the command "CONNECT username/password@connect_identifier" is entered, the "connect_identifier" must match a connection identifier in the parameter list. The connection identifier is not case sensitive.