1、
select t1.DEVICE_NAME ,t2.MONITOR_NAME,t3.OBJECTNAME,t3.SAMPLENAME,t3.SAMPLETIME from T_DEVICE t1,T_MONITOR t2,T_SAMPLES t3 where t1.DEVICE_ID=t2.DEVICE_ID and t2.MONITOR_ID=t3.MONITOR_ID
and t3.SAMPLETIME<sysdate order by t1.DEVICE_NAME
2、
select t1.DEVICE_NAME ,t2.MONITOR_NAME,t3.OBJECTNAME,t3.SAMPLENAME,t3.SAMPLETIME from T_DEVICE t1,T_MONITOR t2,T_SAMPLES t3 where t1.DEVICE_ID=t2.DEVICE_ID and t2.MONITOR_ID=t3.MONITOR_ID
and t3.SAMPLETIME<21-九月 -2009 05:19:04 PM order by t1.DEVICE_NAME1语句执行没问题，2语句执行说什么索引中丢失in或out 参数 ， 请各位指点一下！ 究竟要如何去比较oracle时间
select t1.DEVICE_NAME ,t2.MONITOR_NAME,t3.OBJECTNAME,t3.SAMPLENAME,t3.SAMPLETIME from T_DEVICE t1,T_MONITOR t2,T_SAMPLES t3 where t1.DEVICE_ID=t2.DEVICE_ID and t2.MONITOR_ID=t3.MONITOR_ID
and t3.SAMPLETIME<sysdate order by t1.DEVICE_NAME
2、
select t1.DEVICE_NAME ,t2.MONITOR_NAME,t3.OBJECTNAME,t3.SAMPLENAME,t3.SAMPLETIME from T_DEVICE t1,T_MONITOR t2,T_SAMPLES t3 where t1.DEVICE_ID=t2.DEVICE_ID and t2.MONITOR_ID=t3.MONITOR_ID
and t3.SAMPLETIME<21-九月 -2009 05:19:04 PM order by t1.DEVICE_NAME1语句执行没问题，2语句执行说什么索引中丢失in或out 参数 ， 请各位指点一下！ 究竟要如何去比较oracle时间
-->转换下
to_date('21-九月 -2009 05:19:04 PM','yyyy-mm-dd hh24:mi:ss')
处理为标准时间格式
'yyyy-mm-dd hh24:mi:ss'
第二个要进行时间格式转换啊!to_date('21-九月 -2009 05:19:04 PM','yyyy-mm-dd hh24:mi:ss')。
改成上面就可以