SELECT a.*,b.*,a.QiYe_MingCheng as MingCheng,
(select XXYXQ_FaZhengRQ from QiYe_YouXiaoQi where XX_UniqueID=2 and XXYXQ_HeFaType=1 ) as SCFZRQ
left join QiYe_YouXiaoQi as b on b.XX_UniqueID=a.UniqueID
where b.UniqueID=3
SELECT a.*,b.*,a.QiYe_MingCheng as MingCheng,
(select XXYXQ_FaZhengRQ from QiYe_YouXiaoQi where XX_UniqueID=2 and XXYXQ_HeFaType=1 ) as SCFZRQ
where b.UniqueID=3