id,device_id,json_data.fval, json_data.sval,create_time INSERT INTO watch_ppg_data id, device_id, json_data.fval, json_data.sval, create_time, #{data.id}, #{data.deviceId}, #{data.fval}, #{data.sval}, #{data.createTime}, SELECT COUNT(*) FROM watch_ppg_data WHERE create_time = #{createTime} select * from watch_ppg_data where device_id like #{deviceId} order by create_time desc limit 1