插入後返回多個值

Question

我收到了這個'消息'表。

CREATE TABLE message (
    id INT PRIMARY KEY, 
    user_id INT NOT NULL REFERENCES users (id) ON DELETE CASCADE, 
    category_id INT NOT NULL REFERENCES category (id) ON DELETE CASCADE, 
    text VARCHAR2(4000), 
    media VARCHAR2(500), 
    creation_date DATE DEFAULT SYSDATE 
); 

CREATE SEQUENCE message_seq; 
CREATE OR REPLACE TRIGGER message_bir 
BEFORE INSERT ON message 
FOR EACH ROW 

BEGIN 
    SELECT message_seq.NEXTVAL 
    INTO :new.id 
    FROM dual; 
END; 

之後我插入的東西，我需要最後插入的id和日期。

INSERT INTO message (user_id, category_id, media) 
VALUES (1, 1, 'fdsfsd') 
RETURNING id INTO :last_insert_id 

上面給了我最後插入的ID，但就像我說我還需要creation_date。我不想做一個選擇查詢後...

是否有辦法在運行插入後返回2值？

Answer 1

你可以寫：

RETURNING id, creation_date INTO :last_insert_id, :last_creation_date. 

見http://docs.oracle.com/cd/B28359_01/appdev.111/b28370/returninginto_clause.htm