如何選擇行時列必須滿足多個值？

Question

例如，我有一個表

name | ability 

kevin|say 
kevin|scream 
nike |say 

我想只得到響應凱文，尋找say和scream時。參數計數可能會改變。

Answer 1

您可以group by和having做到這一點：

SELECT name 
FROM t 
WHERE ability in ('say', 'scream') 
GROUP BY name 
HAVING COUNT(*) = 2; 

Answer 2

一種方式來做到這一點是：

SELECT * FROM YourTableName WHERE name='kevin' AND ability IN ('say','scream'); 

另一種方式來做到這一點：

SELECT * FROM YourTableName WHERE name='kevin' AND (ability='say' || ability='scream'); 

祝你好運！

Answer 3

這應該工作：

SELECT name FROM tablename WHERE ability IN ('say', 'scream') GROUP BY name 

或者：

SELECT DISTINCT name FROM tablename WHERE ability IN ('say', 'scream') 

編輯：哦，你要尋找的是具有都能力名字......然後，你可以這樣做：

SELECT DISTINCT name from tablename WHERE name IN (SELECT name FROM tablename WHERE ability = 'say') AND name IN (SELECT name FROM tablename WHERE ability = 'scream') 

或者更好的是，你可以添加一個HAVING子句第一個查詢：

SELECT name FROM tablename WHERE ability IN ('say', 'scream') GROUP BY name HAVING count(*) = 2