Merge Vs Update Which Is Better to Use
MERGE INTO TableA s USING SELECT sddwh_keysdserial_number from TableAto_devstg sd where sddwh_key sdwh_key and sdserial_number. I also load below file -. Jpa Entitymanager Why Use Persist Over Merge Stack Overflow Hi All I need to load different company sales invoice table to PBI as below - After load them to PBI i need to combine both table into 1 table. . I was a bit taken back. When we call update method if the object already existed in cache update method will throw an exception whereas merge method copies the changes into the cache. The MERGE statement as described on docs. If you want to save your modifications at any time with out knowing about the state of an session then use merge in hibernate. Is it Better to Rebase or Merge. But I myself checked the Delete and Insert vs Update on a table that has 30million 3crore records. It processes records dynamically but matching records also will be process...