实现此效果说起来比较难以说明，我这里还是先将实现的效果已图的形式展示一下吧。

这是两个表的设计。我想实现的效果举个例子，以查询secretaryCharge为例：

点击“市级”，我将查询到市级一下所有“区级”的secretaryCharge数目，并通过organizations中的fullName来作为名字，查到的统计数目作为值。得到的效果便是如下图所示：

具体实现sql语句就是用到join on，sql语句具体如下：

 

insert @result(fullName,paramer) ( select fullName,villageCharge from ( select fullName,orgID from organizations where parent=@orgId ) as orgInfo join ( select DJCharge.parentOrg as parent ,sum(villageCharge) as villageCharge from DJCharge,organizations where year=@year and DJCharge.orgID=organizations.orgID and DJCharge.parentOrg in(select distinct orgID from organizations where parent=@orgID)group by DJCharge.parentOrg ) as DJChargeInfo on orgInfo.orgID=DJChargeInfo.parent )

这里我省略了定义、声明等过程，此段代码是begin-end块中的。用了groupby，不用的话则会统计总数，而不能将子查询分开统计。

 

如果需要统计一个表中的多个字段统计数，join-on还可以继续使用，代码例子如下所示：

 

insert @result (regionFullName,countmale,countfemale) ( select fullName,countmale,countfemale from ( select fullName,orgID from organizations where parent=@orgID ) as orgInfo full join ( select count(*) as countmale,SUBSTRING(parentOrg,2,6) AS parent from partyMembers where sex='
男'
and substring(parentOrg ,2,6)in ( select substring(orgID,2,6) AS validOrgID From organizations where parent=@orgID) group by substring(parentOrg,2,6) )as Male on substring(orgInfo.orgID,2,6)=Male.parent full join ( select count(*) as countfemale,substring(parentOrg,2,6)AS parent from partyMembers where sex='
女'
and substring(parentOrg ,2,6)in ( select substring(orgID,2,6) AS validOrgID From organizations where parent=@orgID) group by substring(parentOrg,2,6) )as Female on substring(orgInfo.orgID,2,6)=Female.parent )

这里我用了full join全连接，目的是在显示时只要组成的表中有一个字段有值，这一行都得到。查询效果如下：

 

如果不使用全连接可能会产生多余两行结果。