mysql update select 從查詢結果中更新數據

mysql update select 從查詢結果中更新數據 # update select 語句(注意:必須使用inner join) # 語法 update a inner join (select yy from b) c on a.id =c.id set a.xx = c.yy #SELECT knowledge_id,COUNT(0) nums FROM pro_base_timu_k

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