One-to-many relationship in OOP can be described in an example
In the database, the relationship is usually associated with the OrderSheet by using the ID of the ORDERSHEET as the ITEM table, so the table involving the transformation into the database will inevitably involve SQL statements in the implementation code of the app. To handle foreign keys, this will cause SQL hardcoding, and use Hibernate's profile of ORDERSHEET can be easily implemented, and you can achieve Class-Delete Update OrderSheet.hbm.xml attribute column in set KEY COLUMN Refers to Hibernate's Name property refers to the primary key field of the ORDERSHEET table in the ITET table.
