Ora-12315 Database Link Type is Invalid

 ORA-12315 database link type is invalid for the ALTER DATABASE statement

    Oracle Database Error Code Messages ORA-12315 Help About Description;

Database link type is invalid for the ALTER DATABASE statement.

    Cause for Error and Problem;

The database link name you specified on the ALTER DATABASE statement is not an ROM: link. You must specify an ROM: link when using the ALTER DATABASE statement to mount or open a secondary database.

    How to Solve;ORA-12315 database link type is invalid for the ALTER DATABASE statement?

    Action for Solve and Fix Ora-12315;

Re-issue the ALTER DATABASE statement using a valid ROM: link to the database you want to mount or open. If a valid ROM: link does not exist, create one using the CREATE DATABASE LINK statement. See your documentation for Oracle security-related products for more information about creating database links using the ROM: link type.

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