إدراج وتحديث البيانات على دفعات

في هذا الدرس

send many statements to the database in few round trips.

الموضوعات المخطط لها

• Set hibernate.jdbc.batch_size (for example 50) and order_inserts/order_updates to group statements.
• GenerationType.IDENTITY forces Hibernate to insert each row immediately to get the id, which disables insert batching.
• Use a sequence (GenerationType.SEQUENCE with allocationSize matching the sequence increment) to batch inserts.
• With the PostgreSQL driver, reWriteBatchedInserts=true merges inserts further (verify driver option before recording).
• Flush and clear the persistence context every batch to keep memory flat.