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子查询更新
select *,(select content from pointsection0907 where id=
p.id)as c from pointsection as p
where Id in (select Id from pointsection0907 where id=p.id and content like ‘%<p>%‘) and id=7863
p.id)as c from pointsection as pwhere Id in (select Id from pointsection0907 where id=
p.id and content like ‘%<p>%‘) and id=7863
--update pointsection set content=(select content from pointsection0907 where id=pointsection.id)
--where Id in (select Id from pointsection0907 where id=pointsection.id and content like ‘%<p>%‘)
子查询更新
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