Hibernate maps LocalDate, LocalDateTime, Instant, OffsetDateTime and ZonedDateTime to SQL date, time and timestamp columns without annotations. See the DDL and stored values on Hibernate 7.4 and how @TimeZoneStorage keeps or drops the offset.
Hibernate association mappings link entities with @OneToOne, @ManyToOne, @OneToMany and @ManyToMany. Learn which side owns the foreign key, what mappedBy does, the default fetch types and which mapping to pick.
A Hibernate one-to-many mapping links one parent entity to many children through a foreign key. Learn the bidirectional mappedBy form, the two unidirectional forms, the SQL each runs and the N+1 fix.
Map a many-to-many association in Hibernate 7 with @ManyToMany, @JoinTable and mappedBy, see the real SQL for Set and List, and add extra columns with a join entity.
Map a one-to-one association in Hibernate 7 with JPA @OneToOne: a foreign key with @JoinColumn, a bidirectional mapping with mappedBy, a shared primary key with @MapsId and a join table, with the SQL Hibernate runs.
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