訂購where條件

Question

我有以下查詢：

select `state` from `table1` 
where `state` in ('NC','North Carolina','TN','Tennessee','CO','Colorado','NM','New Mexico','UT','Utah') 
limit 200 offset 0 

我需要他們出現在我的where條款（即第一NC，然後TN，然後CO，並依此類推）state訂購的結果。

我該怎麼做？我嘗試使用order by，但它沒有給出這個結果。

Answer 1

可以使用ORDER BY FIELD

SELECT `state` 
FROM `table1` 
WHERE `state` IN ('NC','North Carolina','TN','Tennessee','CO','Colorado','NM','New Mexico','UT','Utah') 
ORDER BY FIELD(`state`, 'NC','North Carolina','TN','Tennessee','CO','Colorado','NM','New Mexico','UT','Utah'); 

• SQLFiddle Demo

Answer 2

試試這個：

order by case when `state`='NC' or `state`='North Carolina' then 1 
       when `state`='TN' or `state`='Tennessee' then 2 
       when `state`='CO' or `state`='Colorado' then 3 
     end 

Answer 3

您可以用CASE WHEN結構結合ORDER BY：

ORDER BY CASE 
      WHEN state = 'NC' THEN 1 
      WHEN state = 'North Carolina' THEN 2 
      ... 
     END 

Answer 4

SELECT col_name 
FROM table_nane 
WHERE col_nane IN ('NC','North Carolina','TN','Tennessee','CO','Colorado','NM','New Mexico','UT','Utah') 
ORDER BY FIELD(`state`, 'NC',.....); 

等等....