如何在sql(Oracle)中更改查询结果的顺序

如何在sql(Oracle)中更改查询结果的顺序,sql,Sql,我使用以下查询: SELECT * FROM (SELECT DECODE(om.value, 'NAN', '0', om.value) value, om.date_time, om.name, om.measurement_id FROM ems.Observation o, ems.Observation_Measurement om WHERE o.Observation_Id = om.Observation_Id AND o.co_m

我使用以下查询:

SELECT *
FROM
  (SELECT DECODE(om.value, 'NAN', '0', om.value) value,
    om.date_time,
    om.name,
    om.measurement_id
  FROM ems.Observation o,
    ems.Observation_Measurement om
  WHERE o.Observation_Id = om.Observation_Id
  AND o.co_mod_asset_id  =1240
  AND om.measurement_id IN (2109,2110)
  ORDER BY om.DATE_TIME DESC
  )
WHERE rownum <= 8

向查询中添加以下
order by

order by date_time desc, measurement_id
这假设两个测量值的
date\u time
值完全相同,因为它们似乎在提供的输出中

实际上,您也可以在内部查询中将
、measurement\u id
添加到
order by

order by date_time desc, measurement_id