如何將SELECT + WHERE查詢與INSERT查詢結合使用？

Question

我想結合以下兩個查詢，任何人都可以給我一個想法如何做到這一點？ （該INSERT查詢應該運行僅當SELECT查詢有一個結果）

查詢沒有1：

INSERT IGNORE INTO senders(
sender_id, 
telephone, 
) 
VALUES (1, 0723355888) 

查詢沒有2：

SELECT student_name 
FROM students 
WHERE student_id =1 

Answer 1

INSERT INTO senders (sender_id, telephone) 
SELECT student_id, student_telephone FROM students 
WHERE student_id = 1 
LIMIT 1 

或如果telefone不是學生表的一部分，則很難c頌詞： 這適用，因爲如果查詢0行，根本不執行插入。

INSERT INTO senders (sender_id, telephone) 
SELECT 1, 0723355888 FROM students 
WHERE student_id = 1 
LIMIT 1 

Answer 2

嘗試使用此查詢 -

INSERT IGNORE INTO senders (sender_id, telephone) 
SELECT student_id as sender_id, telephone 
FROM students 
WHERE student_id=1 

Answer 3

試試這個：

INSERT IGNORE INTO senders(sender_id, telephone) 
SELECT 1 as sender_id, 0723355888 as telephone 
FROM students WHERE student_id =1