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 Query: Add a column using case and group by it		  New Topic  Reply to Topic
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HarryCallaghan
Starting Member

4 Posts
Posted - 02/25/2013 :  07:49:11  Show Profile  Reply with Quote
Hi!

I have a sales table with codes such as "NT34" "A56" "FE45" where the initial NT, VA or FE means that the order comes from one plant or another and i need to group by plant. So i'm trying to add a case statement in the select clause using "like" to add a column that show the plant where the order comes. Problem is, of course, that the select statement is being processed after the group by statement so that strategy doesnt work. ¿Any idea how to solve that?

Some sample code: 
select case when pedido_cliente like 'NT%' then 'Engines' when pedido_cliente like 'FE%' then 'Pilot' end as Planta
from dbo.pedidos
group by Planta



Thanks a lot!

James K
Flowing Fount of Yak Knowledge

1527 Posts
Posted - 02/25/2013 :  07:53:26  Show Profile  Reply with Quote
Rather than use the alias, repeat the CASE expression in the group by clause

select case when pedido_cliente like 'NT%' then 'Engines' when pedido_cliente like 'FE%' then 'Pilot' end as Planta
from dbo.pedidos
group by case when pedido_cliente like 'NT%' then 'Engines' when pedido_cliente like 'FE%' then 'Pilot' end
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HarryCallaghan
Starting Member

4 Posts
Posted - 02/25/2013 :  09:11:31  Show Profile  Reply with Quote
Thanks a lot! It works
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James K
Flowing Fount of Yak Knowledge

1527 Posts
Posted - 02/25/2013 :  10:09:28  Show Profile  Reply with Quote
You are very welcome - glad to help.
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