In SQL server 2008, I have the following two tables
Table_1:
C1 C2
A TypeStringA-1
B TypeStringA-2
C TypeStringA-3
D TypeStringA-4
E TypeStringA-5
Table_2
C1 C2
A TypeStringB-1
B TypeStringB-2
D TypeStringB-3
E TypeStringB-4
And I want to show the following data:
Result
A TypeStringA-1 TypeStringB-1
B TypeStringA-2 TypeStringB-2
C TypeStringA-3 Null
D TypeStringA-4 TypeStringB-3
E TypeStringA-5 TypeStringB-4
Right now what I have is two sub-queries and a where:
select
query1.C1
query1.C2
query2.C2
(select C1, C2
from Table_1) as query1
(select C2
from table_2) as query2
where query1.C1 = query2.C1
order by query1.C1
However logically in my result I am not having the Null data that I need to show, this is what I am getting:
Result
A TypeStringA-1 TypeStringB-1
B TypeStringA-2 TypeStringB-2
D TypeStringA-4 TypeStringB-3
E TypeStringA-5 TypeStringB-4
The question is what should I use to shot the table as I want with a Null data?.
select coalesce(t1.C1, t2.C1)
, t1.C2
, t2.C2
from Table_1 t1
full outer join
Table2 t2
on t1.C1 = t2.C1
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.