Oracle / PLSQL: ORA-01506 Error Message

Learn the cause and how to resolve the ORA-01506 error message in Oracle.

Description

When you encounter an ORA-01506 error, the following error message will appear:

• ORA-01506: missing or illegal database name

Cause

You tried to execute an ALTER DATABASE command without a specified database name, and there is no value specified for the DB_NAME initialization parameter in the initialization file.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

Either specify a database name in the ALTER DATABASE command or set a value for the DB_NAME parameter in the initialization file.