Question (Derby 10.2) copy in, copy out practices for database with identity columns with relationship and constraints on those columns

[Chowdhury Lincoln <Li...@nrw.qld.gov.au>]

Question (Derby 10.2) copy in, copy out practices for database with
identity columns with relationship and constraints on those columns.

I am using:
Sun Application Server,
Toplink JPA, 
EJB 3
Derby 10.2 Database
to develop a JEE 5 application.

Created Entities with generated identity columns. These entities have
relationships and constraints. The tables and constraints are created
when I deploy the EJB project to the application server (the appserver
manages the connections).

What I am trying to achieve:
-	Replicate the Table data in various environment (Development,
Test, etc) and be able also apply schema modifications before applying
the changes.
o	Copy data out (Export) from an environment (database) to file
o	Copy data in (Import) to another environment (database) from
file
o	Modify schema then import the data

What I have tried:
-	used SYSCS_UTIL.SYSCS_EXPORT_TABLE to export the data to file
-	used SYSCS_UTIL.SYSCS_IMPORT_DATA to import the data from file
into the tables
Problems I am facing with this approach:
-	I can't force the db to insert the identity column from the file
as a result, the relationship between the table and another table (which
uses the id as foreign key) is not maintained
EG:
Two tables:
1.	Order {id - generated identity, name}
2.	OrderLine {id, orderID, name}

OrderLine.orderID - > Order.id (foreign key).

When I try to copy both these tables from one db to another, the
relationship is lost. Ie. The Order.id in the destination table is not
the same as the source table.

Question: 
How do I solve this problem?
What are the best practices for dealing with identity columns and
copying out/in table data?

Thanking you in anticipation.

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