如何使用 CASE 更新 MySQL 中的条目以获得新值？

谁能告诉我如何解决这个查询？

update ae44
set Price = Case
when ID = 'AT259793380' then '500'
when ID = 'AT271729590' then '600'
when ID = 'AT275981020' then '700'
end case

我只是想通过匹配ID来根据ID批量更新上市价格。

UPDATE  ae44
SET     price =
        CASE
        WHEN ID = 'AT259793380' THEN
                '500'
        WHEN ID = 'AT271729590' THEN
                '600'
        WHEN ID = 'AT275981020' THEN
                '700'
        END

请注意，此查询会将具有其他 ID 的记录的价格更新为NULL.

如果您只想更新列表中的 id，请使用以下命令：

UPDATE  ae44
JOIN    (
        SELECT  'AT259793380' AS oldval, '500' AS newval
        UNION ALL
        SELECT  'AT271729590' AS oldval, '600' AS newval
        UNION ALL
        SELECT  'AT275981020' AS oldval, '700' AS newval
        ) q
ON      ae44.id = q.oldval
SET     price = q.newval