UPDATE語句的WHERE子句

Question

我想更新表sheet和hproject集列值「是」，其中customer有hproject =「是」

UPDATE `sheet` SET `hproject` = 'yes' WHERE (
SELECT `customer` 
FROM `sheet` 
WHERE `hproject` = 'yes' 
) 

上面的查詢不工作，我會感激任何幫助或指導。

問候

Answer 1

嘗試：

UPDATE `sheet` SET `hproject` = 'yes' WHERE `customer` in (
    select * from(
    SELECT `customer` 
    FROM `sheet` 
    WHERE `hproject` = 'yes' 
)t 
)