How to fix the Oracle error PCB-00234: FOR variable “string” is invalid type?

In this post, you’ll learn more about the Oracle ErrorPCB-00234: FOR variable “string” is invalid type with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PCB-00234: FOR variable “string” is invalid type

Reason for the Error PCB-00234: FOR variable “string” is invalid type

Cause: The count variable in a FOR clause has the wrong datatype. The datatype must be NUMBER or LONG (or be compatible with NUMBER or LONG).

How to fix the Error PCB-00234: FOR variable “string” is invalid type ?

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

Action: Check the declaration and check that the count variable has a datatype of NUMBER or LONG (or a compatible Oracle or host-language datatype).