ORA-01506

Error: ORA-01506: missing or illegal database name

Causa: No database name was specified in the CREATE/ALTER DATABASE statement, and no DB_NAME initialization parameter was specified.

Acción: Either the database name must be given in the statement or in the DB_NAME initialization parameter. Note that the SVRMGR or SQL*PLUS STARTUP command issues an ALTER DATABASE statement using the database name specified as part of STARTUP (if any).