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Cascading update with Oracle trigger

2022-07-07 14:14:00 【sinat_ thirty-six million seven hundred and eighty-nine thousan】

create or replace TRIGGER  Trigger name 
AFTER UPDATE OF  Update column name of the update table a1 ON  Update table name a
FOR EACH ROW
BEGIN
  IF :OLD. Update column name of the update table a1<>:NEW. Update column name of the update table a1 THEN
    UPDATE  Cascade update table name b SET  Cascade update column name b1=:NEW. Update column name of the update table a1 WHERE  Cascade update column name b1=:OLD. Update column name of the update table a1;
  END IF;
END;

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