请助:ORA-01841错误
我写的条SQL,但是运行时出错了,问题是:以下"红字"部份我必须采用变量的形式,运行出错的SQL在以下第一段,(第二段是在第一段基础上变:红字部份改为了常量,就不会出错了.不知道第一条语句有什么问题,请助各位帮助!)
--运行出错
select * from (
select DM,DMMC,to_date(JKM,'YYYY.MM.DD') AS SSSQ_Q,to_date(BCM,'YYYY.MM.DD') AS SSSQ_Z
From TNCS01 where DMLB='NSSBBD' and dm in (select SBLX_DM from TNSB01 where NSRDZDAH=500105000001247173 and
((to_date('2008.06.01','YYYY.MM.DD') Between YXQ_Q and YXQ_Z) or YXQ_Z is null))
) A
where to_date('2008.06.01','YYYY.MM.DD') Between SSSQ_Q AND SSSQ_Z
--运行正常
select * from (
select DM,DMMC,to_date(JKM,'YYYY.MM.DD') as SSSQ_Q,
to_date(BCM,'YYYY.MM.DD') as SSSQ_Z from TNCS01 where DMLB='NSSBBD' and dm in (select SBLX_DM from TNSB01 where NSRDZDAH=500105000001247173 and
((to_date('2008.06.01','YYYY.MM.DD') Between YXQ_Q and YXQ_Z) or YXQ_Z is null))
) AAA
where to_date('2008.06.01','YYYY.MM.DD') Between to_date('2008.06.01','YYYY.MM.DD') AND to_date('2008.06.30','YYYY.MM.DD')