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sql优化

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This commit is contained in:
mashili
2025-06-30 13:11:05 +08:00
parent 49a3ce2c11
commit cebd845af1
13 changed files with 356 additions and 169 deletions
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27
ems-system/src/main/resources/mapper/ems/EmsBatteryStackMapper.xml
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@ -305,16 +305,23 @@
</delete>
<select id="selectEmsBatteryStackBySiteId" parameterType="String" resultType="com.xzzn.ems.domain.vo.BMSOverViewVo">
select td.device_name as deviceName,tmp.work_status as workStatus,
tmp.pcs_communication_status as pcsCommunicationStatus,tmp.ems_communication_status as emsCommunicationStatus,
tmp.total_voltage as totalVoltage,tmp.chargeable_capacity as chargeableCapacity,tmp.total_charged_capacity as totalChargedCapacity,
tmp.total_current as totalCurrent,tmp.dischargeable_capacity as dischargeableCapacity,tmp.total_discharged_capacity as totalDischargedCapacity,
tmp.soh as soh,tmp.average_temperature as averageTemperature,tmp.insulation_resistance as insulationResistance,
tmp.current_soc as currentSoc,tmp.site_id as siteId,tmp.device_id as deviceId
from ems_battery_stack tmp left join ems_devices_setting td on tmp.device_id = td.device_id and tmp.site_id = td.site_id
where tmp.site_id = #{siteId}
and tmp.update_time = (select MAX(t.update_time) FROM ems_battery_stack t where t.site_id = tmp.site_id
and t.device_id = tmp.device_id)
SELECT td.device_name as deviceName,tmp.work_status as workStatus,
tmp.pcs_communication_status as pcsCommunicationStatus,tmp.ems_communication_status as emsCommunicationStatus,
tmp.total_voltage as totalVoltage,tmp.chargeable_capacity as chargeableCapacity,
tmp.total_charged_capacity as totalChargedCapacity,
tmp.total_current as totalCurrent,tmp.dischargeable_capacity as dischargeableCapacity,
tmp.total_discharged_capacity as totalDischargedCapacity,
tmp.soh as soh,tmp.average_temperature as averageTemperature,tmp.insulation_resistance as insulationResistance,
tmp.current_soc as currentSoc,tmp.site_id as siteId,tmp.device_id as deviceId
FROM ems_battery_stack tmp
left join ems_devices_setting td on tmp.device_id = td.device_id and tmp.site_id = td.site_id
INNER JOIN (
SELECT p.site_id, p.device_id, MAX(p.update_time) AS max_update_time
FROM ems_battery_stack p
WHERE p.site_id = #{siteId}
GROUP BY p.site_id,p.device_id
) latest on tmp.device_id = latest.device_id and tmp.update_time = latest.max_update_time
WHERE tmp.site_id = #{siteId}
order by tmp.device_id
</select>
</mapper>