In this post, you’ll learn more about the Oracle ErrorORA-09929: GLB of two labels is invalid with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-09929: GLB of two labels is invalid
Reason for the Error ORA-09929: GLB of two labels is invalid
The result of a greatest lower bound operation on two labels was not valid.
How to fix the Error ORA-09929: GLB of two labels is invalid ?
You can fix this error in Oracle by following the below steps
Repeat the operation with two different labels. Consult the system encoding file for the values of valid labels.