Accumulation and enhancement: the role of the inverse (inversion) attribute in hibernate

• In hibernate, the inverse attribute is determined by which side of the two-way association maintains the relationship between the table and the table. Inverse = False for the active party, inverse = True for the passive side, the active side is responsible for maintaining the association relationship • Father and son are maintained on both sides without setting inverse=true

Relationship

• In a 1-n relationship, setting the N-side as the main controller will help improve performance (if it is not possible for the head of State to remember the names of the people of the country, it is much easier to make the National people aware of the head of State) • In the 1-n relationship, if the 1-party is set as the main control party – Additional UPDATE statements are added. – You cannot insert a foreign key column while inserting data, so you cannot add a non-empty constraint to a foreign key column

Accumulation and enhancement: the role of the inverse (inversion) attribute in hibernate