Apache Derby DB Error Code X0Y56 – ‘‘ is not allowed on the System table ‘‘. Posted by AbundantCode In this blog post, let’s learn about the error message “X0Y56- ‘‘ is not allowed on the System table ‘‘.” in Apache Derby Database and the description of the error. Error Message X0Y56- ‘‘ is not allowed on the System table ‘‘. Error Details ‘‘ is not allowed on the System table ‘‘. Share this:PostLike this:Like Loading... AbundantCode September 18, 2024