请通过查询帮助我：
select *
from sc84 as nom
join sc319 as p on p.PARENTEXT = nom.id
join sc219 as pt on p.sp327 = pt.id
join _1SCONST as c on c.objid=p.id
结果近似这样的表
Car / price_base / 08-08-2016:13-40 / 100 /
Car / price_base / 08-08-2016:14-40 / 150 /
Car / price_base / 08-09-2016:13-40 / 190 /
Car / price_super / 08-09-2016:18-40 / 210 /
Car / price_super / 08-10-2016:13-40 / 290 /
我希望返回
Car / price_base / 08-09-2016:13-40 / 190 /
Car / price_super / 08-10-2016:13-40 / 290 /
这很好，日期价格的类型及其价值。请提示如何获得最后（每种类型的价格和每种商品的当前价格）尝试与组的选项，但显然没有足够的技能。
nom.id - PK SKU
pt.id - PK price type
p.id -PK price
p.parentext - parent price (sku)
p.sp327 - FK to price type
date = date column
我正在使用SQL Server 2008。
表格结构
T=1SCONST |
----Columns-------
Name |Descr |Type|Length|Precision
F=ROW_ID |Row ID |I |0 |0
F=OBJID |ID obj(0-cons ) |C |9 |0
F=ID |ID parameter |I |0 |0
F=DATE |Fix date |D |0 |0
F=VALUE |valume |V |255 |0
F=DOCID |ID Document |C |9 |0
F=TIME |Time |I |0 |0
F=ACTNO |Action No |I |0 |0
F=LINENO_ |LineNo |S |0 |0
F=TVALUE | |C |3 |0
T=SC319 |
----Columns-------
Name |Descr |Type|Length|Precision
F=ROW_ID |Row ID |I |0 |0
F=ID |ID object |C |9 |0
F=PARENTEXT |Parent in other tabl|C |9 |0
F=ISMARK |Object is Marked for|L |0 |0
F=VERSTAMP |Version stamp |I |0 |0
F=SP6681 |(P)Âàëþòà |C |9 |0
F=SP6682 |(P)Ïðîöåíò |N |5 |2
F=SP327 |(P)ÒèïÖåí |C |9 |0
T=SC319 |Ñïðàâî÷íèê Öåíû |SC319 |R
# ----Columns-------
# Name |Descr |Type|Length|Precision
F=ROW_ID |Row ID |I |0 |0
F=ID |ID object |C |9 |0
F=PARENTEXT |Parent in other tabl|C |9 |0
F=ISMARK |Object is Marked for|L |0 |0
F=VERSTAMP |Version stamp |I |0 |0
F=SP6681 |(P)Âàëþòà |C |9 |0
F=SP6682 |(P)Ïðîöåíò |N |5 |2
F=SP327 |(P)ÒèïÖåí |C |9 |0
#==TABLE no 24 : Ñïðàâî÷íèê Íîìåíêëàòóðà
# Name |Descr |SQLTableNam|RecordLock
T=SC84 |Ñïðàâî÷íèê Íîìåíêëàòóðà |SC84 |R
# ----Columns-------
# Name |Descr |Type|Length|Precision
F=ROW_ID |Row ID |I |0 |0
F=ID |ID object |C |9 |0
F=PARENTID |ID parent obj |C |9 |0
F=CODE |object code |C |8 |0
F=DESCR |object description |C |70 |0
F=ISFOLDER |Is Line - Folder |Y |0 |0
F=ISMARK |Object is Marked for|L |0 |0
F=VERSTAMP |Version stamp |I |0 |0
F=SP85 |(P)Àðòèêóë |C |25 |0
F=SP86 |(P)ÁàçîâàÿÅäèíèöà |C |9 |0
F=SP208 |(P)Âåñîâîé |N |1 |0
F=SP2417 |(P)ÂèäÍîìåíêëàòóðû |C |9 |0
F=SP97 |(P)ÌèíÎñòàòîê |N |13 |3
F=SP5066 |(P)ÍåÂêëþ÷àòüÂïðàéñ |N |1 |0
F=SP5013 |(P)ÍîìåðÃÒÄ |C |9 |0
F=SP94 |(P)ÎñíîâíàÿÅäèíèöà |C |9 |0
F=SP4427 |(P)ÎñíîâíîåÑâîéñòâî |C |9 |0
F=SP103 |(P)ÑòàâêàÍÄÑ |C |9 |0
F=SP104 |(P)ÑòàâêàÍÏ |C |9 |0
F=SP5012 |(P)ÑòðàíàÏðîèñõîæäåí|C |9 |0
F=SP8574 |(P)ÍèçÎòêëîíåíèÿÑåáå|N |4 |2
F=SP8575 |(P)ÂåðõÎòêëîíåíèÿÑåá|N |4 |2
F=SP8576 |(P)ÍèçÎòêëîíåíèÿÑïåö|N |4 |2
F=SP8577 |(P)ÂåðõÎòêëîíåíèÿÑïå|N |4 |2
F=SP8578 |(P)ÍèçÎòêëîíåíèÿÇàêó|N |4 |2
F=SP8579 |(P)ÂåðõÎòêëîíåíèÿÇàê|N |4 |2
F=SP8580 |(P)ÍèçÎòêëîíåíèÿÐîçí|N |4 |2
F=SP8581 |(P)ÂåðõÎòêëîíåíèÿÐîç|N |4 |2
F=SP8599 |(P)Äëèíà |N |6 |2
F=SP8600 |(P)Øèðèíà |N |6 |2
F=SP8601 |(P)Âûñîòà |N |6 |2
F=SP8602 |(P)Îáúåì |N |14 |5
F=SP8606 |(P)ÌàêñèìàëüíûéÏðîöå|N |4 |2
F=SP8607 |(P)Àäðåñ |C |9 |0
F=SP95 |(P)Êîììåíòàðèé |M |0 |0
F=SP101 |(P)ÏîëíÍàèìåíîâàíèå |M |0 |0
答案 0 :(得分：0)
select * from (
select *, ROW_NUMBER() over(partition by nom.id,pt.id order by c.date desc) NUM
from sc84 as nom
join sc319 as p
on p.PARENTEXT = nom.id
join sc219 as pt
on p.sp327 = pt.id
join _1SCONST as c
on c.objid=p.id
) A
where NUM=1