select pm.message_id, pm.message_type, pm.message_title, pm.message_content, pm.message_status, pm.send_time, pm.send_type, pm.create_time, pm.create_user_id, pm.update_time, pm.update_user_id, pm.available from yt_platform_message_record pmr join yt_platform_message pm on pmr.message_id = pm.message_id where pmr.recipient = #{userId} select message_id, message_type, message_title, message_content, message_status, send_time, send_type, create_time, create_user_id, update_time, update_user_id, available from yt_platform_message where message_id = #{messageId} select record_id, message_id, recipient, recipient_status, recipient_time, create_user_id, create_time, update_user_id, update_time, available from yt_platform_message_record where recipient_status = 0 and message_id = #{messageId} and recipient not in (#{userId}) update yt_platform_message_record set recipient_status = 1, update_user_id = #{userId}, update_time = now() where message_id = #{messageId} and recipient = #{userId} update yt_platform_message message_type = #{messageType}, message_title = #{messageTitle}, message_content = #{messageContent}, message_status = #{messageStatus}, send_time = #{sendTime}, send_type = #{sendType}, update_time = #{updateTime}, update_user_id = #{updateUserId}, available = #{available} where message_id = #{messageId}