Apache Derby DB Error Code X0Y41 – Constraint ‘‘ is invalid because the referen

In this blog post, let’s learn about the error message “X0Y41- Constraint ‘‘ is invalid because the referen” in Apache Derby Database and the description of the error.

Error Message

X0Y41- Constraint ‘‘ is invalid because the referen

Error Details

Constraint ‘‘ is invalid because the referenced table has no primary key. Either add a primary key to or explicitly specify the columns of a unique constraint that this foreign key references.