問題描述

問題解答

// acc_id 加索引SELECT accinfo_id FROM acc_accinfo accWHERE acc.`is_delete` = 1 AND acc_id NOT in ( SELECT acc_id FROM acc_circulate_setting where area_id = 1 AND is_delete = 1 ); // 或者分2步查 回答2：

acc_accinfo的accinfo_id是不是沒有索引