Sqlserver 中間表的操作


去除列名重復

 

select rtrim(ltrim(a.Bank)) as Country, count(*) as Total
from T_BASE_OWNER a left join
T_BASE_COMPANY b on a.CompanyID= b.ID
left join T_BASE_BUILD c on b.BuildID=c.ID
where c.Level=2 and a.OwnerType=1
and a.Bank is not NULL and a.Bank != ''
group by rtrim(ltrim(a.Bank))


select w.Country as Country,count(*) as Total from
(select rtrim(ltrim(a.Bank)) as Country from T_BASE_OWNER a left join
T_BASE_COMPANY b on a.CompanyID= b.ID
left join T_BASE_BUILD c on b.BuildID=c.ID
where c.Level=2 and a.OwnerType=1
and a.Bank is not NULL and a.Bank != '' ) w group by w.Country


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