[英]MYSQL update records on a where condition depending from subquery
我得到子查詢返回多行的錯誤。 如何解決這個問題:
UPDATE sales
SET newsletter='0'
WHERE (user_id='33' AND product_id=(SELECT product_id FROM phplist_list WHERE id = (SELECT listid FROM phplist_listmessage WHERE messageid='20')))
您可以使用in
而不是=
來解決此問題:
UPDATE sales
SET newsletter='0'
WHERE user_id = '33' AND
product_id in (SELECT product_id
FROM phplist_list
WHERE id in (SELECT listid
FROM phplist_listmessage
WHERE messageid = '20'
)
)
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