MySQL的選擇，顯示與特定值第一

Question

SELECT userid, name 
FROM users 
WHERE nationality="US" 
ORDER BY name 

假設我想與userid=101和nationality="US「用戶行顯示第一不管是什麼，並使用一個查詢做它真的很重要。

Answer 1

嘗試FIELD

SELECT userid, name FROM users WHERE nationality="US" ORDER BY FIELD(user_id,101) DESC, name asc 

Field Documentation

Answer 2

試試這個：

SELECT * FROM (
    SELECT userid, name, IF(user = 101, 1 , 2) AS rank 
    FROM users WHERE nationality = "US" 
) AS subselect ORDER BY subselect.rank ASC, subselect.name ASC 

Answer 3

或者，你可以這樣做：

SELECT userid, name, (userid=101) AS test FROM users WHERE nationality="US" ORDER BY test DESC, name ASC