update websites set master = 2 where url = select url from websites where id = 12;
显然 mysql 不允许您对正在更新的表运行选择查询。
将其放入派生表中。这会具体化为临时表并绕过限制.
update websites
set master = 2
where url in (select url
from (select url
from websites
where id = 12) t);
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)