数据库多表查询的问题

[pgz_007]

就是把两个表的同材料的数量累加 再相减，用存储过程实现如下：（小于某个日期的，日期可以通过参数传递）
declare @date datetime
select clbhid,sum(innumber) as innumber into #temptable1 from storage where indate<@date
select clbhid,sum(outnumber) as outnumber into #temptable2 from outstock where outnumber<@date

select clbhid,innumber-outnumber from #temptable1 left join #temptable2 on #temptable1.clbhid=#temptable2.clbhid

但现在paradox数据库不支持存储过程，可以用视图，请问我该怎样实现上面的功能?

[pgz_007]

"storageview.sql" 视图：
select clbhid,sum(innumber) as innumber,indate from storage group by clbhid,indate order by clbhid

"outstockview.sql" 视图：
select clbhid,sum(outnumber) as outnumber,outdate from outstock group by clbhid,outdate order by clbhid

但把这样两个视图连接再相减是不行的，因为 数量累加过程中 多个日期只变成一个了，但又不能设置变量，麻烦

[梅青松]

没有环境
你试试连接行不行
select a.clbhid,sum(a.innumber) as innumber - sum(b.outnumber) as outnumber
from storage a, outstock b
where a.clbhid = b.clbhid and a.indate <@date
and b.outnumber <@date
group by a.clbhid

[pgz_007]

楼上的，storage，outstock 表每个数量和编号都对应一个日期，你在累加(sum)过程中多个日期就变成了一个日期。
所以最好是能先单表控制，再去连接。所以估计你那样是不行的。