Apache Derby DB Error Code 42Y70 – The user specified an illegal join order. This could be caus

In this blog post, let’s learn about the error message “42Y70- The user specified an illegal join order. This could be caus” in Apache Derby Database and the description of the error.

Error Message

42Y70- The user specified an illegal join order. This could be caus

Error Details

The user specified an illegal join order. This could be caused by a join column from an inner table being passed as a parameter to an external virtual table.