select apm.clientId, apm.meter_coefficient as meterCoefficient, chives.calibration, management_time as managementTime from aws_parameter_management apm inner join aws_check_chives chives on chives.clientId = apm.clientId left join aws_tarch_cjq cjq on cjq.clientId = apm.clientId inner join aws_tarch_metersetting atm on atm.id = cjq.type where DATEDIFF(management_time, NOW()) between -3 and 0 and atm.`name` = "涡街流量计"在mybatis中如何书写
时间: 2024-02-23 16:58:06 浏览: 273
您好!针对您的问题,可以使用MyBatis的Mapper XML文件来实现SQL语句的书写。具体的代码如下:
```xml
<select id="selectMeterData" parameterType="map" resultMap="MeterDataMap">
select apm.clientId, apm.meter_coefficient as meterCoefficient, chives.calibration, management_time as managementTime
from aws_parameter_management apm
inner join aws_check_chives chives on chives.clientId = apm.clientId
left join aws_tarch_cjq cjq on cjq.clientId = apm.clientId
inner join aws_tarch_metersetting atm on atm.id = cjq.type
where DATEDIFF(management_time, NOW()) between -3 and 0
and atm.`name` = "涡街流量计"
</select>
```
其中:
- `selectMeterData`是映射器方法的ID,可以自定义;
- `parameterType="map"`表示参数类型为Map;
- `resultMap="MeterDataMap"`表示返回结果集映射到MeterDataMap对象中;
- 具体的SQL语句与您提供的一致。
希望能够帮到您!如有其他问题,欢迎继续提问。
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