您可以使用 UNPIVOT函数把列变成行:

You can use the UNPIVOT function to turn the columns into rows:

select id, value
from yourtable
unpivot
(
  value
  for col in ([fName], [lName], [Address], [PostCode], [ContactNumber])
) unpiv

请参阅SQL Fiddle with Demo.

unpivot 将要求所有列的数据类型相同.因此，您可能必须对具有与此类似的不同数据类型的任何列执行 cast/convert:

The unpivot will require the datatype on all of the columns to be the same. So you might have to perform a cast/convert on any columns with different datatypes similar to this:

select id, value
from
(
  select id, [fName], [lName], [Address], [PostCode],
    cast([ContactNumber] as varchar(15)) [ContactNumber]
  from yourtable
) src
unpivot
(
  value
  for col in ([fName], [lName], [Address], [PostCode], [ContactNumber])
) unpiv;

参见SQL Fiddle with Demo.

从 SQL Server 2008 开始，这也可以使用带有 VALUES 的 CROSS APPLY 来编写:

Starting in SQL Server 2008, this can also be written using a CROSS APPLY with a VALUES:

select t.id,
  c.value
from yourtable t
cross apply
(
  values(fName), 
    (lName), 
    (Address), 
    (PostCode), 
    (cast(ContactNumber as varchar(15)))
) c (value)

参见SQL Fiddle with Demo