Combine multiple SQL queries in SQL Server 2008 into a datatable on ASP.NET using C#

I am trying to combine 2 big SQL queries into one datatable, so I can load it on the webpage.

Query #1:

select
    isnull(SALES_NUM4, '') SalesNo, 
    count(CUS_ID) NumOfCust, 
    count(distinct sales_num) NumOfRep
from 
    (select 
         SALES_NUM4, CUS_ID, SLS_TYPE, SALES_NUM 
     from customer

     union

     select 
         SALES_NUM4, CUS_ID, SLS_TYPE, SALES_NUM 
     from omsdata7.dbo.customer) a
where 
    SALES_NUM4 != '' and SLS_TYPE = '1'
group by 
    SALES_NUM4
order by 
    SALES_NUM4

Query #2:

select 
    isnull(SALES_NUM4, '') SalesNo, 
    count(ORD_NUM) MTD_Ord, 
    convert(decimal(10, 2), sum(ORD_AMT)) MTD_Amt
from 
    (select 
         SALES_NUM4, ORD_DT, ORD_NUM, ORD_AMT 
     from orders

     union

     select 
         SALES_NUM4, ORD_DT, ORD_NUM, ORD_AMT 
     from omsdata7.dbo.orders) a
where 
    DATEADD(day, ORD_DT-4, '1801-01-01') >= DATEADD(m, DATEDIFF(m, 0, GETDATE()), 0)
    and DATEADD(day, ORD_DT-4, '1801-01-01') < getdate()
    and SALES_NUM4 != ''
group by 
    SALES_NUM4
order by 
    SALES_NUM4

via Chebli Mohamed