mysql连表查空,查询第二张表中没有第一张表中的数据


select consumer_id,user_name,mobile,invite_code from csr_consumer where invite_count<(select count(1) from csr_invite_picture)


select invite_picture_id,blank_file_store_id,logo_file_store_id from csr_invite_picture t1 where t1.invite_picture_id not in (select invite_picture_id from csr_consumer_invite t2 where t2.consumer_id = 100)

原文地址:https://www.cnblogs.com/zhangrongfei/p/12582166.html