This list is for performance tuning questions related to PostgreSQL ... your question is a general SQL syntax issue. Also, it's not quite clear from your message exactly what you are trying to do - it's better to post example table schemas.
At a guess, I think you might want:
select 1, * from T1
union all
select 2, * from T2
Cheers
Dave
On Thu, Mar 11, 2010 at 12:56 AM, Angayarkanni <kangayarkanni@xxxxxxxxx> wrote:
Hi,
I am the beginner of pgpsql
I need to select from two tables say T1,T2 by UNION
when the value is from T1 the output should by a 1 and
when the value from T2 the out put should be 2
when T1 Hits values should be 1 and when T2 hits the value should be 2
or when we use
COALESCE(is exits value, or this value)
i need
say_some_function (if value display,1)
results should be as
1
1
2
2
1
1
Is it possible Can any one help me...
Thanks & Regards
AK
