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oracle 触发器实现级联更新
2022-07-07 12:12:00 【sinat_36789271】
create or replace TRIGGER 触发器名字
AFTER UPDATE OF 更新表的更新列列名a1 ON 更新表表名a
FOR EACH ROW
BEGIN
IF :OLD.更新表的更新列列名a1<>:NEW.更新表的更新列列名a1 THEN
UPDATE 级联更新表表名b SET 级联更新列列名b1=:NEW.更新表的更新列列名a1 WHERE 级联更新列列名b1=:OLD.更新表的更新列列名a1;
END IF;
END;
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