問題詳情
41. 在 SQL 中,如何定義一個觸發器?
(A) CREATE TRIGGER trigger_name ON table_name
BEFORE INSERT AS BEGIN ... END;
(B) CREATE TRIGGER trigger_name ON table_name FOR
EACH ROW BEGIN ... END;
(C) CREATE TRIGGER trigger_name ON table_name AFTER INSERT
AS BEGIN ... END;
(D) CREATE TRIGGER trigger_name ON table_name FOR EACH
STATEMENT BEGIN ... END;。
參考答案
答案:C
統計:A:0,B:0,C:0,D:0,E:0
難度:計算中