How to fix the Oracle error SQL-02121: Invalid host name?

In this post, you’ll learn more about the Oracle ErrorSQL-02121: Invalid host name with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

SQL-02121: Invalid host name

Reason for the Error SQL-02121: Invalid host name

Cause: The host name passed into a SQLFCN call was not used in a previous call to SQLRCN.

How to fix the Error SQL-02121: Invalid host name ?

You can fix this error in Oracle by following the below steps

Action: Use the same identifier used in the corresponding SQLRCN call. *Note: This error *msg* is never actually used. The error *number* is used, given as the return value of sqlfcn if this error occurs.