Apache Derby DB Error Code 42Y00 – Class ‘‘ does not implement org.apache.derby.iapi

Posted by AbundantCode

In this blog post, let’s learn about the error message “42Y00- Class ‘‘ does not implement org.apache.derby.iapi” in Apache Derby Database and the description of the error.

Error Message

42Y00- Class ‘‘ does not implement org.apache.derby.iapi

Error Details

Class ‘‘ does not implement org.apache.derby.iapi.db.AggregateDefinition and thus cannot be used as an aggregate expression.