creating a trigger with derby database and netbeans ide

Question

I am developing a simple desktop application using derby database and netbeans IDE I have a table with an ID column with fields that are unique.

first i do not want to manually insert into the ID column secondly looks like the derby DB does not have an auto increment system like with mySQL.

To work around this problem I will like to use a BEFORE TRIGGER to insert into the table when an insert operation is performed.

Does any one have any idea on how to create a trigger for the derby database on the netbeans IDE. Or is it possible to have an auto increment system that will increment the IDE field for me.

best regards

Answer 1

Derby does have an auto increment data type: it's called GENERATED AS IDENTITY.

Read more about it here: http://db.apache.org/derby/docs/10.9/ref/rrefsqlj37836.html#rrefsqlj37836