选择多个值作为一列，而不是每个值的列，SQL Server

Question

If you do this query in SQL Server it will give you 15 different columns- one for each postcode.

SELECT 
    'CB89RX', 'CB259BL', 'CB19BF', 'CB245HS', 'CB30AP', 'CB12LJ', 
    'CB21RB', 'CB28PX', 'CB28PE', 'CB250HX', 'CB231HN', 'CB58TD', 
    'CB246AY', 'CB42QT', 'CB249JA' AS A

What I want is 1 column that contains all 15 values. How can I do this?

Answer 1

You can try using UNPIVOT

select u.postcode
    from tablename
    unpivot
    (
      postcode
      for val in (CB89RX, CB259BL, CB19BF, CB245HS, CB30AP, CB12LJ, CB21RB, CB28PX, CB28PE, CB250HX, CB231HN, CB58TD, CB246AY, CB42QT, CB249JA)
    ) u;

Answer 2

I would like to use From .... VALUES

Select 
    val
From 
  (
  VALUES
    ('CB89RX'), 
    ('CB259BL'), 
    ....
  ) AS T (val)

sqlfiddle

Answer 3

You can use union :

SELECT 'CB89RX' as PostalCode
Union
Select  'CB19BF'  as PostalCode 
Union 
Select 'CB245HS' as PostalCode 
Union 
... 

Answer 4

Try this to avoid repetitive use of as .

SELECT   'CB89RX'  as A
   union 
   select  'CB259BL' 
   union 
   select 'CB19BF' 
   union 
   select 'CB245HS'
   union 
   select 'CB30AP'
   union 
   select    'CB12LJ'
   union 
   select    'CB21RB'
   union 
   select    'CB28PX'   
   union 
   select    'CB28PE'
   union 
   select    'CB250HX'
   union 
   select 'CB231HN'
   union 
   select 'CB58TD'
   union 
   select 'CB246AY'
   union 
   select 'CB42QT'
   union 
   select 'CB249JA'