從dbo.XXXXX中選擇top n其中trade'in（'a'，'b'，'c'）

Question

創建查詢以將下面的SELECT查詢組裝成一個查詢而不是每個查詢都有一些問題一個手動。這有助於自己一個創建CSV文件更容易和更快

select top 200 * from dbo.abacus where type = 'A' 
select top 200 * from dbo.abacus where type = 'B' 
select top 200 * from dbo.abacus where type = 'E' 
select top 200 * from dbo.abacus where type = 'F' 
select top 200 * from dbo.abacus where type = 'F' 
select top 200 * from dbo.abacus where type = 'FX' 
select top 200 * from dbo.abacus where type = 'E' 

Answer 1

嘗試UNION：從這裏

select top 200 * from dbo.abacus where type = 'A' 
union 
select top 200 * from dbo.abacus where type = 'B' 
union 
select top 200 * from dbo.abacus where type = 'E' 
union 
select top 200 * from dbo.abacus where type = 'F' 
union 
select top 200 * from dbo.abacus where type = 'F' 
union 
select top 200 * from dbo.abacus where type = 'FX' 
union 
select top 200 * from dbo.abacus where type = 'E' 

Answer 2

select top 200 * from dbo.abacus where type = 'a' 
union 
select top 200 * from dbo.abacus where type = 'b' 

更多閱讀http://msdn.microsoft.com/en-us/library/ms180026(v=sql.100).aspx